L 366682

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MedKoo CAT#: 596533

CAS#: 127819-96-9

Description: L 366682 is an oxytocin antagonist.

Price and Availability

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Pricing updated 2020-04-07. Prices are subject to change without notice.

L 366682 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#: 596533
Name: L 366682
CAS#: 127819-96-9
Chemical Formula: C40H53N9O6
Exact Mass: 755.4119
Molecular Weight: 755.92
Elemental Analysis: C, 63.56; H, 7.07; N, 16.68; O, 12.70

Synonym: L 366682; L-366682; L366682; L 366,682; L-66,682; L366,682;

IUPAC/Chemical Name: 24-((1H-imidazol-5-yl)methyl)-16-((1H-indol-3-yl)methyl)-13-(sec-butyl)octadecahydro-2H,12H-dipyrido[1,2-a:1',2'-d]pyrrolo[1,2-j][1,4,7,10,13,16]hexaazacyclooctadecine-6,12,15,18,23,26(6aH)-hexaone


InChi Code: 1S/C40H53N9O6/c1-3-24(2)34-40(55)49-17-9-7-14-33(49)39(54)48-16-8-6-13-31(48)37(52)45-30(20-26-22-41-23-43-26)38(53)47-18-10-15-32(47)36(51)44-29(35(50)46-34)19-25-21-42-28-12-5-4-11-27(25)28/h4-5,11-12,21-24,29-34,42H,3,6-10,13-20H2,1-2H3,(H,41,43)(H,44,51)(H,45,52)(H,46,50)

SMILES Code: CCC(C1C(N2CCCCC2C(N3CCCCC3C(NC(Cc4[nH]cnc4)C(N5CCCC5C(NC(Cc6c7ccccc7[nH]c6)C(N1)=O)=O)=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).

HS Tariff Code:


1: Geenen V, Martens H, Robert F, Vrindts-Gevaert Y, De Groote D, Franchimont P. Immunomodulatory properties of cyclic hexapeptide oxytocin antagonists. Thymus. 1992 Dec;20(4):217-26. PubMed PMID: 1492361.

2: Clineschmidt BV, Pettibone DJ, Reiss DR, Lis EV, Haluska GJ, Novy MJ, Cook MJ, Cukierski MA, Kaufman MJ, Bock MG, et al. Antagonism of oxytocin in rats and pregnant rhesus monkeys by the novel cyclic hexapeptides, L-366,682 and L-366,948. J Pharmacol Exp Ther. 1991 Mar;256(3):827-32. PubMed PMID: 2005582.

3: Pettibone DJ, Clineschmidt BV, Lis EV, Reiss DR, Totaro JA, Woyden CJ, Bock MG, Freidinger RM, Tung RD, Veber DF, et al. In vitro pharmacological profile of a novel structural class of oxytocin antagonists. J Pharmacol Exp Ther. 1991 Jan;256(1):304-8. PubMed PMID: 1988661.