Endocrine
CJC-1295 (No DAC)
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21+ · VERIFIED LAB USE
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Sermorelin is the unmodified 1-29 fragment of human growth-hormone-releasing hormone, amidated at the C-terminus. It is the shortest fragment of GHRH that retains full receptor activity, which is why it became the reference sequence for the class.
Sermorelin is the unmodified 1-29 fragment of human growth-hormone-releasing hormone, amidated at the C-terminus. It is the shortest fragment of GHRH that retains full receptor activity, which is why it became the reference sequence for the class.
Unlike CJC-1295, Sermorelin carries no stabilising substitutions, so it is the more labile of the two in solution and the more sensitive to handling. It serves as the native-sequence comparator in most GHRH-receptor work.
The single methionine residue at position 27 makes it susceptible to oxidation; keep vials sealed and desiccated until the point of use.
| Compound name | Sermorelin |
| Classification | Endocrine research compound |
| CAS number | 86168-78-7 |
| Molecular formula | C149H246N44O42S |
| Molecular weight | 3357.9 g/mol |
| Sequence | GHRH(1-29)-NH2 |
| Purity (this lot) | 99.1% by RP-HPLC |
| Endotoxin | <0.5 EU/mg by LAL |
| Appearance | White lyophilized powder |
| Vial size | 5 mg |
| Solubility | Soluble in sterile or bacteriostatic water |
| Storage | Lyophilized: -20 C, desiccated. Reconstituted: 2-8 C, use within 30 days. |
| Released lot | PS-9002345 |
Vials arrive lyophilized and sealed under nitrogen. Bring the vial fully to room temperature before breaking the seal — opening a cold vial condenses atmospheric moisture onto the cake.
Direct diluent gently against the inside wall of the vial rather than onto the cake, and allow the material to dissolve without agitation. Vortexing shears longer sequences and introduces air.
Lyophilized: -20 C, desiccated. Reconstituted: 2-8 C, use within 30 days.
A full walkthrough is in the reconstitution guide, and the calculator will work out concentration and draw volume for this vial size.
Standard laboratory practice applies: appropriate personal protective equipment, no consumption, no administration to humans or animals, and disposal in accordance with institutional protocol and local regulation.
Both certificates below were generated against this specific lot and published before it was released to stock. Enter the lot number in the certificate lookup to retrieve them at any time. New to reading these? See how to read a certificate of analysis.
Sermorelin is the native GHRH(1-29) sequence. CJC-1295 carries four substitutions that improve enzymatic stability.
No stabilising substitutions, plus an oxidation-sensitive methionine at position 27.
The first 29 residues of the 44-residue native GHRH sequence - the minimum fragment retaining full receptor activity.
Sermorelin is supplied for in-vitro laboratory research only. It is not a drug, dietary supplement, food or cosmetic, is not approved by the FDA for any use in humans or animals, and no dosing guidance is published for it. Nothing on this page is a therapeutic, structure–function or health claim. Purchasers must be 21 or over and are responsible for compliance with all applicable law. Full terms of supply.
