CAS No. 129121-73-9
Batch:
Purity:97.95
Chemical Structure
Check the
Rat CGRP-(8-37)
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
Chemical Information
| IUPAC Name | (4S)-4-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-4-amino-2-[[(2S,3R)-2-[[(2S)-1-[(2S)-2-[[(2S)-2-[[(2S)-4-amino-2-[[(2S)-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S,3R)-2-[[(2S)-2-amino-3-methylbutanoyl]amino]-3-hydroxybutanoyl]amino]-3-(1H-imidazol-4-yl)propanoyl]amino]-5-carbamimidamidopentanoyl]amino]-4-methylpentanoyl]amino]propanoyl]amino]acetyl]amino]-4-methylpentanoyl]amino]-4-methylpentanoyl]amino]-3-hydroxypropanoyl]amino]-5-carbamimidamidopentanoyl]amino]-3-hydroxypropanoyl]amino]acetyl]amino]acetyl]amino]-3-methylbutanoyl]amino]-3-methylbutanoyl]amino]hexanoyl]amino]-3-carboxypropanoyl]amino]-4-oxobutanoyl]amino]-3-phenylpropanoyl]amino]-3-methylbutanoyl]pyrrolidine-2-carbonyl]amino]-3-hydroxybutanoyl]amino]-4-oxobutanoyl]amino]-3-methylbutanoyl]amino]acetyl]amino]-3-hydroxypropanoyl]amino]-5-[[(2S)-1-[[(2S)-1-amino-1-oxo-3-phenylpropan-2-yl]amino]-1-oxopropan-2-yl]amino]-5-oxopentanoic acid | |
|---|---|---|
| CAS Number | 129121-73-9 | |
| Molecular Formula |
C138H224N42O41 |
|
| Molecular Weight (MW) | 3127.52 | |
| InChIKey | HZKKKBMPFPSSKZ-QZMRZBIOSA-N |
Biological Activity
Rat CGRP-(8-37) is a truncated peptide derivative of calcitonin gene-related peptide that acts as a selective antagonist of the CGRP receptor. By competitively blocking CGRP receptor activation and downstream intracellular signaling, it modulates nociceptive signal transmission in the central nervous system. In preclinical models, administration of this antagonist abolishes mechanical and thermal allodynia, exerting robust anti-nociceptive effects in central neuropathic pain. [1]
How to Prepare Stock Solution?
|
Concentration
Volume
Mass
|
|---|
Solubility
Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
| Solvent | Solubility & Note |
|---|---|
| DMSO |
100 mg/mL
(31.97 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Water | 50 mg/mL |
| Ethanol | Insoluble |
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
- Preheat media/saline to 37°C.
- Mix rapidly (pipette/vortex) upon addition.
- For complex mixes, always add the aqueous phase last.
- Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).
Reference
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Note: Technical data last updated: Sep 1, 2026.