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storage

Page 16 of 27 · 646 questions tagged storage.

646 questions · sorted by votes · page 16 of 27

16 votes 5 answers21k views
Is a laboratory refrigerator good enough for storing reconstituted tirzepatide?

Concretely: a laboratory refrigerator · tirzepatide. I want to decide this in advance so that I am not deciding it under pressure later. Assume I will follow the plan…

storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
cold-chain
cold-chain

Keeping material within a temperature window from manufacture to use: phase-change packs versus dry ice, thermal mass, transit-lane temperature…

524 questions
harm-reduction
harm-reduction

Reducing avoidable risk where a decision has already been made: independent verification before use, sterility practice, dose arithmetic checked…

445 questions
asked by yuki_morishita 19k · 15 months ago
16 votes 5 answers19k views
Is 25 °C an acceptable storage condition for lyophilised semaglutide?

For reference: 25 °C · semaglutide. Somebody stated this to me confidently and I would like to check it before repeating it. I would accept a well-reasoned negative…

storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

832 questions
shelf-life
shelf-life

How long a preparation remains within specification: labelled expiry for a sealed lyophilised vial, beyond-use dating after reconstitution, and…

301 questions
asked by Dr_Marek_Zielinski 39k · 17 months ago
16 votes0 answers14k views
What is the thermal exposure on a Guangzhou to Japan lane in summer?

The case in front of me: Guangzhou · Japan. The figures are clear enough; the question is what they mean and what they do not. I can supply the numbers if the…

cold-chain
cold-chain

Keeping material within a temperature window from manufacture to use: phase-change packs versus dry ice, thermal mass, transit-lane temperature…

524 questions
international-shipping
international-shipping

Cross-border movement of research material: transit lanes and their thermal profiles, tracked versus untracked, declaration accuracy, and what…

427 questions
storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
asked by gel_pack_warm 13k · 15 months ago
16 votes5 answers13k views
Is a domestic freezer good enough for storing reconstituted survodutide?

The specifics, since they change the answer: a domestic freezer · survodutide. I am at the decision point and I would rather think it through than improvise. I would…

storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
cold-chain
cold-chain

Keeping material within a temperature window from manufacture to use: phase-change packs versus dry ice, thermal mass, transit-lane temperature…

524 questions
harm-reduction
harm-reduction

Reducing avoidable risk where a decision has already been made: independent verification before use, sterility practice, dose arithmetic checked…

445 questions
asked by swab_stopper 16k · 18 months ago
16 votes 5 answers13k views
How long does retatrutide stay within specification at room temperature once reconstituted?

What I am working with: retatrutide · room temperature. Everything I have found on this is either a forum aside or a product page, neither of which I trust. I am…

peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

832 questions
storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
shelf-life
shelf-life

How long a preparation remains within specification: labelled expiry for a sealed lyophilised vial, beyond-use dating after reconstitution, and…

301 questions
asked by pk_curve 12k · 5 months ago
16 votes5 answers13k views
Does fibrillation dominate for ecnoglutide held at minus 20 °C?

The specifics, since they change the answer: fibrillation · ecnoglutide · minus 20 °C. I understand the observation; what I do not understand is the mechanism behind…

peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

832 questions
storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
hplc
hplc

Reverse-phase high-performance liquid chromatography, the workhorse purity method. Column chemistry, mobile-phase choice, gradient slope,…

466 questions
asked by rae_oyelowo 21k · 10 months ago
16 votes 5 answers12k views
What happens to dulaglutide after eight weeks at 30 °C in solution?

Stated plainly: dulaglutide · eight weeks · 30 °C. I keep seeing this stated as a fact with no explanation attached, and unexplained facts make me suspicious. My…

peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

832 questions
storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
shelf-life
shelf-life

How long a preparation remains within specification: labelled expiry for a sealed lyophilised vial, beyond-use dating after reconstitution, and…

301 questions
asked by imani_dube 19k · 12 months ago
16 votes5 answers12k views
What happens to orforglipron after eight weeks at 4 °C in solution?

Stated plainly: orforglipron · eight weeks · 4 °C. I keep seeing this stated as a fact with no explanation attached, and unexplained facts make me suspicious. My…

peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

832 questions
storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
shelf-life
shelf-life

How long a preparation remains within specification: labelled expiry for a sealed lyophilised vial, beyond-use dating after reconstitution, and…

301 questions
asked by anders_vestby 17k · 15 months ago
16 votes 5 answers10k views
How many freeze-thaw cycles will liraglutide at 2.5 mg/mL tolerate?

The particulars: liraglutide · 2.5 mg/mL. I want a method I can write down and repeat, not a rule of thumb. I would rather over-engineer this than discover a problem…

freeze-thaw
freeze-thaw

What repeated freezing does to a peptide in solution: ice-crystal shear at the growing front, freeze-concentration of solutes, pH shifts as buffer…

55 questions
peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

832 questions
storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
asked by unit_math 13k · 7 months ago
16 votes5 answers8.2k views
What happens to ecnoglutide after four weeks at 37 °C in solution?

Concretely: ecnoglutide · four weeks · 37 °C. I want to know whether this is a real physical effect or an artefact of how it is measured. What prompted the question…

peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

832 questions
storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
shelf-life
shelf-life

How long a preparation remains within specification: labelled expiry for a sealed lyophilised vial, beyond-use dating after reconstitution, and…

301 questions
asked by p_mkhize 41k · 3 months ago
16 votes 5 answers6.5k views
Why does aggregation accelerate at 30 °C rather than proceeding linearly?

What I am working with: aggregation · 30 °C. I keep seeing this stated as a fact with no explanation attached, and unexplained facts make me suspicious. My background…

peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

832 questions
storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
hplc
hplc

Reverse-phase high-performance liquid chromatography, the workhorse purity method. Column chemistry, mobile-phase choice, gradient slope,…

466 questions
asked by bridget_nyathi 16k · 3 months ago
16 votes 2 answers6.4k views
Does survodutide adsorb measurably to the vial wall at 8 mg/mL?

The case in front of me: survodutide · 8 mg/mL. I want the working, not the result — I need to be able to redo it with different numbers. I care about the precision…

peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

832 questions
content-assay
content-assay

Quantified content: how many milligrams of peptide are actually in the vial, measured against a calibrated reference standard. A separate test…

438 questions
storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
asked by lucia_marchetti 18k · 3 months ago
16 votes 5 answers5.8k views
Is there any published stability data for cagrilintide at 2–8 °C?

Details up front: cagrilintide · 2–8 °C. I am asking for verification rather than opinion, ideally with something I can read myself. It is possible the evidence…

peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

832 questions
storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
clinical-trials
clinical-trials

Reading the primary literature properly: estimands, intention-to-treat versus per-protocol, confidence intervals, absolute versus relative…

913 questions
asked by mg_per_ml 12k · 4 months ago
16 votes 5 answers5.5k views
What is the thermal exposure on a Guangzhou to Canada lane in summer?

Setup, so nobody has to ask: Guangzhou · Canada. I have read the primary source rather than the summary, which has left me with more questions. I understand the…

cold-chain
cold-chain

Keeping material within a temperature window from manufacture to use: phase-change packs versus dry ice, thermal mass, transit-lane temperature…

524 questions
international-shipping
international-shipping

Cross-border movement of research material: transit lanes and their thermal profiles, tracked versus untracked, declaration accuracy, and what…

427 questions
storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
asked by samir_bennani 13k · 5 months ago
16 votes 5 answers5k views
Is 25 °C an acceptable storage condition for lyophilised retatrutide?

Numbers first: 25 °C · retatrutide. I am asking for verification rather than opinion, ideally with something I can read myself. It is possible the evidence exists and…

storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

832 questions
shelf-life
shelf-life

How long a preparation remains within specification: labelled expiry for a sealed lyophilised vial, beyond-use dating after reconstitution, and…

301 questions
asked by a_lindgren 46k · 19 days ago
16 votes 5 answers3.1k views
How many freeze-thaw cycles will ecnoglutide at 20 mg/mL tolerate?

The case in front of me: ecnoglutide · 20 mg/mL. I am trying to do this correctly the first time rather than learn it by getting it wrong. I have already made one…

freeze-thaw
freeze-thaw

What repeated freezing does to a peptide in solution: ice-crystal shear at the growing front, freeze-concentration of solutes, pH shifts as buffer…

55 questions
peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

832 questions
storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
asked by anouk_desmet 18k · 2 months ago
16 votes 4 answers2.3k views
Is there any published stability data for cagrilintide at minus 80 °C?

Numbers first: cagrilintide · minus 80 °C. I would rather be corrected now than propagate something wrong. I am specifically not interested in a testimonial; I am…

peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

832 questions
storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
clinical-trials
clinical-trials

Reading the primary literature properly: estimands, intention-to-treat versus per-protocol, confidence intervals, absolute versus relative…

913 questions
asked by leonid_marchuk 15k · 7 days ago
15 votes 4 answers37k views
How long does dulaglutide stay within specification at 2–8 °C once reconstituted?

Stated plainly: dulaglutide · 2–8 °C. This is a procedural question rather than a theoretical one, and I would like the procedure rather than the theory. What I have…

peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

832 questions
storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
shelf-life
shelf-life

How long a preparation remains within specification: labelled expiry for a sealed lyophilised vial, beyond-use dating after reconstitution, and…

301 questions
asked by gel_pack_warm 13k · 2.2 years ago
15 votes 4 answers32k views
How do I plan for an orforglipron supply interruption without stockpiling badly?

I have the same lot stored correctly as a comparator, if a side-by-side test would help. I am trying to build something sustainable rather than something thorough…

storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
discontinuation
discontinuation

Stopping treatment: tapering versus abrupt cessation, what the trial withdrawal arms measured, clinically driven stops, and the practical planning…

21 questions
cost-analysis
cost-analysis

Cost arithmetic done honestly: cost per milligram after dead-space loss, list versus net price, comparing a multi-dose vial to a fixed-dose pen,…

261 questions
asked by thermal_mass 16k · 21 months ago
15 votes 4 answers22k views
Is room temperature an acceptable storage condition for lyophilised a GLP-1 receptor agonist?

What I am working with: room temperature · a GLP-1 receptor agonist. This is asserted often enough that I assumed it was established, and then I went looking for the…

storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

832 questions
shelf-life
shelf-life

How long a preparation remains within specification: labelled expiry for a sealed lyophilised vial, beyond-use dating after reconstitution, and…

301 questions
asked by gradient_slope 41k · 20 months ago
15 votes 5 answers19k views
What is the thermal exposure on a Nantong to the United States lane in summer?

Setup, so nobody has to ask: Nantong · the United States. I have read the primary source rather than the summary, which has left me with more questions. I understand…

cold-chain
cold-chain

Keeping material within a temperature window from manufacture to use: phase-change packs versus dry ice, thermal mass, transit-lane temperature…

524 questions
international-shipping
international-shipping

Cross-border movement of research material: transit lanes and their thermal profiles, tracked versus untracked, declaration accuracy, and what…

427 questions
storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
asked by noor_alhassan 15k · 22 months ago
15 votes 3 answers17k views
What happens to oral semaglutide after ten weeks at 4 °C in solution?

The particulars: oral semaglutide · ten weeks · 4 °C. I would like the mechanism, because I want to be able to reason about the cases nobody has written about. I have…

peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

832 questions
storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
shelf-life
shelf-life

How long a preparation remains within specification: labelled expiry for a sealed lyophilised vial, beyond-use dating after reconstitution, and…

301 questions
asked by elke_brunner 14k · 11 months ago
15 votes0 answers14k views
Why does fibrillation accelerate at 2–8 °C rather than proceeding linearly?

The specifics, since they change the answer: fibrillation · 2–8 °C. I understand the observation; what I do not understand is the mechanism behind it. I have read the…

peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

832 questions
storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
hplc
hplc

Reverse-phase high-performance liquid chromatography, the workhorse purity method. Column chemistry, mobile-phase choice, gradient slope,…

466 questions
asked by net_peptide 16k · 15 months ago
15 votes 5 answers12k views
Is a mini-fridge good enough for storing reconstituted liraglutide?

Concretely: a mini-fridge · liraglutide. The failure mode I am trying to avoid is making this decision emotionally. I have twelve months in view and I would like the…

storage
storage

Storage conditions and their evidence base: minus twenty degrees for powder, refrigerated for solution, protection from light, and what the…

646 questions
cold-chain
cold-chain

Keeping material within a temperature window from manufacture to use: phase-change packs versus dry ice, thermal mass, transit-lane temperature…

524 questions
harm-reduction
harm-reduction

Reducing avoidable risk where a decision has already been made: independent verification before use, sterility practice, dose arithmetic checked…

445 questions
asked by dana_wexler 15k · 12 months ago