Gastrazole free acid

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MedKoo CAT#: 596197

CAS#: 174610-98-1

Description: Gastrazole, also know as JB-95008, is a CCK2 receptor antagonist potentially for the treatment of pancreatic cancer.

Price and Availability

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Pricing updated 2020-03-29. Prices are subject to change without notice.

Gastrazole free acid is not in stock, may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to to inquire quote.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 596197
Name: Gastrazole free acid
CAS#: 174610-98-1
Chemical Formula: C34H34FN5O7
Exact Mass: 643.2442
Molecular Weight: 643.67
Elemental Analysis: C, 63.44; H, 5.32; F, 2.95; N, 10.88; O, 17.40

Synonym: Gastrazole free acid; Gastrazole; JB-95008; JB95008; JB 95008;

IUPAC/Chemical Name: (S)-5-(2-(6-((cycloheptylmethyl)carbamoyl)-1H-benzo[d]imidazole-5-carboxamido)-3-(2-fluorophenyl)propanamido)isophthalic acid


InChi Code: 1S/C34H34FN5O7/c35-26-10-6-5-9-20(26)14-29(32(43)39-23-12-21(33(44)45)11-22(13-23)34(46)47)40-31(42)25-16-28-27(37-18-38-28)15-24(25)30(41)36-17-19-7-3-1-2-4-8-19/h5-6,9-13,15-16,18-19,29H,1-4,7-8,14,17H2,(H,36,41)(H,37,38)(H,39,43)(H,40,42)(H,44,45)(H,46,47)/t29-/m0/s1

SMILES Code: O=C(Nc1cc(C(O)=O)cc(C(O)=O)c1)[C@@H](NC(c2c(C(NCC3CCCCCC3)=O)cc4[nH]cnc4c2)=O)Cc5ccccc5F

Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:


1: Black JW. Reflections on some pilot trials of gastrin receptor blockade in pancreatic cancer. Eur J Cancer. 2009 Feb;45(3):360-4. doi: 10.1016/j.ejca.2008.11.026. Epub 2009 Jan 7. Review. PubMed PMID: 19131241.

2: Rudholm T, Wallin B, Theodorsson E, Näslund E, Hellström PM. Release of regulatory gut peptides somatostatin, neurotensin and vasoactive intestinal peptide by acid and hyperosmolal solutions in the intestine in conscious rats. Regul Pept. 2009 Jan 8;152(1-3):8-12. doi: 10.1016/j.regpep.2008.10.002. Epub 2008 Oct 10. PubMed PMID: 18992283.

3: Chau I, Cunningham D, Russell C, Norman AR, Kurzawinski T, Harper P, Harrison P, Middleton G, Daniels F, Hickish T, Prendeville J, Ross PJ, Theis B, Hull R, Walker M, Shankley N, Kalindjian B, Murray G, Gillbanks A, Black J. Gastrazole (JB95008), a novel CCK2/gastrin receptor antagonist, in the treatment of advanced pancreatic cancer: results from two randomised controlled trials. Br J Cancer. 2006 Apr 24;94(8):1107-15. PubMed PMID: 16622436; PubMed Central PMCID: PMC2361246.

4: Freedman JM, Barrett TD, Shankley NP. A novel, quantitative bio-assay for cholecystokinin type-1 receptor activity in the anaesthetised rat. J Pharmacol Toxicol Methods. 2006 Jul-Aug;54(1):36-41. Epub 2005 Oct 24. PubMed PMID: 16246596.

5: Bayés M, Rabasseda X, Prous JR. Gateways to clinical trials. Methods Find Exp Clin Pharmacol. 2004 Jan-Feb;26(1):53-84. Review. PubMed PMID: 14988742.