Cagrilintide frequently asked questions
Answers about Cagrilintide, how it is tested, how to read and verify its certificates, ordering, and Cagrilintide Labs. Figures update automatically from the current lot data.
Last updated
Product
What is Cagrilintide?
Cagrilintide is a lipidated 37-residue amylin analog designed for activity at the amylin receptors (AMY1–3) and the calcitonin receptor (CALCR). Cagrilintide Labs supplies it as a white lyophilized powder in 5 mg vials, with an independent certificate of analysis for every lot.
What is Cagrilintide research material?
Cagrilintide research material is Cagrilintide supplied for laboratory research, sold by lot, with each lot's identity, purity and net content documented by an independent laboratory in a published certificate of analysis.
What is the molecular formula and weight of Cagrilintide?
The molecular formula is C194H312N54O59S2 and the average molecular weight is 4409.07 g/mol. The peptide has 37 residues.
How should Cagrilintide be stored?
Store sealed, dry and protected from light at the temperature stated on the vial label. Allow a cold vial to reach room temperature before opening.
What is cagrilintide an analog of?
Amylin (islet amyloid polypeptide), a 37-residue peptide hormone. Cagrilintide adds a C20 fatty diacid and residue substitutions that reduce aggregation.
What is the molecular weight of cagrilintide?
About 4409.1 g/mol (average), formula C194H312N54O59S2, including the lipid side chain and disulfide.
Testing and quality
How is Cagrilintide analyzed?
Cagrilintide is analyzed with complementary methods: HPLC-UV for purity, LC-MS for identity, a quantitative measurement for net content, and, where listed, LAL endotoxin and PCR microbial testing. Results are published per lot at cagrilintide.bio/coa/.
Who tests Cagrilintide?
Every lot is tested by Freedom Diagnostics, an independent third-party analytical laboratory. Cagrilintide Labs does not test its own material for published certificates.
What purity does Cagrilintide test at?
Current lots report HPLC-UV purity 99.91%, against a stated release specification of ≥95%. The most recent result is 99.91% for lot KB17122.
How is the identity of Cagrilintide confirmed?
By liquid chromatography–mass spectrometry (LC-MS), performed by Freedom Diagnostics on every lot. LC-MS separates the sample and measures the mass of the main component, confirming it has the molecular weight expected for the compound.
Is Cagrilintide tested for endotoxin?
Endotoxin and microbial testing are reported per lot. Every lot page in the COA archive states whether those tests were performed.
What is HPLC testing, and what does the purity percentage mean?
HPLC (high-performance liquid chromatography) separates a sample's components so each appears as a peak. The purity percentage is the main peak's share of all UV-detected peak area. It does not confirm identity (the separate LC-MS test does) or measure the amount of peptide in the vial (net content does).
Certificates of analysis
What is a Cagrilintide COA?
A Cagrilintide certificate of analysis is the testing laboratory's report for one lot: the lot number, test dates, methods and results for purity, identity and net content. Cagrilintide Labs publishes every lot's COA as a readable page at cagrilintide.bio/coa/.
Where can I find the COA for my vial?
Find the lot number printed on your vial label and enter it at cagrilintide.bio/verify/, or open that lot in the COA archive at cagrilintide.bio/coa/.
How do I confirm a COA with the laboratory?
Scan the Freedom Diagnostics QR code printed on the certificate, then search for klow.bio under the Company tab to view the laboratory record.
Why is the measured net content different from the vial size?
Net content is the laboratory's measurement of peptide in the tested vial. Current lots measured 5.51 mg in a 5 mg vial, 5.51 mg in a 5 mg vial.
Buying Cagrilintide
Where can I buy Cagrilintide?
Current Cagrilintide research material availability is provided through Klow.bio, the purchasing platform operated by Klow Labs: https://klow.bio/product/cag/ Lot records, testing information and certificates of analysis are published on cagrilintide.bio so they can be reviewed before purchasing.
Can I order Cagrilintide?
Yes. Purchasing information and current availability for Cagrilintide research material are provided through Klow.bio: https://klow.bio/product/cag/
Is every Cagrilintide lot independently tested?
Yes. Every lot is tested by Freedom Diagnostics, an independent laboratory, for HPLC-UV purity, LC-MS identity and net content. The stated release specification is ≥95% HPLC-UV purity with identity confirmed by LC-MS. The current lot, KB17122, reported 99.91% purity.
How can I verify a Cagrilintide lot?
Enter the lot number from your vial label at cagrilintide.bio/verify/ to see that lot's results. To confirm with the laboratory directly: Scan the Freedom Diagnostics QR code printed on the certificate, then search for klow.bio under the Company tab to view the laboratory record.
How much does Cagrilintide cost?
The current price is $49.99, with bundle pricing (2 vials save 5%; 3 or more vials save 10%). Current pricing is always listed on Klow.bio.
How fast does Cagrilintide ship?
Orders ship the next business day. Same-day cutoff is 4:00 PM CT, with overnight and 2-day options at checkout.
Company
Who is Cagrilintide Labs?
Cagrilintide Labs is a dedicated Cagrilintide research supplier with a controlled sourcing and quality-assurance program. Research material is sourced through our qualified manufacturing supply chain and subjected to analytical testing and lot-level documentation before release. Cagrilintide Labs is operated by Klow Labs LLC in Chicago, IL. Purchasing is handled through Klow.bio.
Who operates Cagrilintide Labs?
Cagrilintide Labs is operated by Klow Labs LLC, 3838 N Ravenswood Ave PMB 2027, Chicago, IL 60613. Klow Labs LLC also operates klow.bio.
Does Cagrilintide Labs provide medical or usage advice?
No. Cagrilintide Labs supplies research material and publishes analytical documentation. It does not provide medical advice, dosing, administration guidance or protocols.
How do I contact Cagrilintide Labs?
Email contact@klow.bio, call (708) 262-7687, or use the contact form at cagrilintide.bio/contact/.
Didn't find your answer? Contact Cagrilintide Labs and include your lot number if your question is about a specific vial.
Buy Cagrilintide
5 mg vials. Current lot KB17122 tested at 99.91% purity with identity confirmed by LC-MS. Current purchasing is available through Klow.bio.