A 70874

    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 571182

CAS#: 131449-37-1

Description: A 70874 has high potency and selectivity for cholecystokinin (CCK) A receptors.

Price and Availability




A 70874 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 sales@medkoo.com to inquire quote.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 571182
Name: A 70874
CAS#: 131449-37-1
Chemical Formula: C45H55N7O10
Exact Mass: 853.401
Molecular Weight: 853.97
Elemental Analysis: C, 63.29; H, 6.49; N, 11.48; O, 18.73

Synonym: A 70874; A-70874; A70874

IUPAC/Chemical Name: L-Phenylalaninamide, N-((1,1-dimethylethoxy)carbonyl)-L-tryptophyl-N6-(3-(4-hydroxyphenyl)-1-oxo-2-propenyl)-L-lysyl-L-alpha-aspartyl-Nalpha-methyl-


InChi Code: InChI=1S/C45H55N7O10/c1-45(2,3)62-44(61)51-35(25-30-27-48-33-15-9-8-14-32(30)33)42(59)49-34(16-10-11-23-47-38(54)22-19-28-17-20-31(53)21-18-28)41(58)50-36(26-39(55)56)43(60)52(4)37(40(46)57)24-29-12-6-5-7-13-29/h5-9,12-15,17-22,27,34-37,48,53H,10-11,16,23-26H2,1-4H3,(H2,46,57)(H,47,54)(H,49,59)(H,50,58)(H,51,61)(H,55,56)/b22-19+/t34-,35-,36-,37-/m0/s1

SMILES Code: O=C(N)[C@H](CC1=CC=CC=C1)N(C([C@H](CC(O)=O)NC([C@H](CCCCNC(/C=C/C2=CC=C(O)C=C2)=O)NC([C@H](CC3=CNC4=C3C=CC=C4)NC(OC(C)(C)C)=O)=O)=O)=O)C

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).

Harmonized System Code:


1: Lin CW, Shiosaki K, Miller TR, Witte DG, Bianchi BR, Wolfram CA, Kopecka H, Craig R, Wagenaar F, Nadzan AM. Characterization of two novel cholecystokinin tetrapeptide (30-33) analogues, A-71623 and A-70874, that exhibit high potency and selectivity for cholecystokinin-A receptors. Mol Pharmacol. 1991 Mar;39(3):346-51. PubMed PMID: 1706470.

2: Lin CW, Bianchi BR, Miller TR, Witte DG, Wolfram CA. Both CCK-A and CCK -B/gastrin receptors mediate pepsinogen release in guinea pig gastric glands. Am J Physiol. 1992 Jun;262(6 Pt 1):G1113-20. PubMed PMID: 1616041.

3: Bianchi BR, Miller TR, Witte DG, Lin CW. Novel CCK analogues and bombesin: a detailed analysis between phosphoinositide breakdown and high-dose inhibition of pancreatic enzyme secretion in three rodent species. J Pharmacol Exp Ther. 1994 Feb;268(2):996-1002. PubMed PMID: 7509394.