AA 57

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

MedKoo CAT#: 571275

CAS#: 68026-87-9

Description: AA 57 is an antibiotic related to pentalenolactone.

Price and Availability

Size Price Shipping out time Quantity
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Pricing updated 2020-03-29. Prices are subject to change without notice.

AA 57 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#: 571275
Name: AA 57
CAS#: 68026-87-9
Chemical Formula: C15H17ClO5
Exact Mass: 312.0765
Molecular Weight: 312.75
Elemental Analysis: C, 57.61; H, 5.48; Cl, 11.34; O, 25.58

Synonym: AA 57; AA-57; AA57

IUPAC/Chemical Name: Pentaleno(1,3a-c)pyran-5-carboxylic acid, 1,2,4,4a,6a,7-hexadyro-1-(chloromethyl)-7,8-dimethyl-1-hydroxy-2-oxo-


InChi Code: InChI=1S/C15H17ClO5/c1-7-4-14-10(8(7)2)3-9(12(17)18)11(14)5-21-13(19)15(14,20)6-16/h3-4,8,10-11,20H,5-6H2,1-2H3,(H,17,18)/t8-,10+,11-,14-,15+/m0/s1

SMILES Code: C[C@H]1C(C)=C[C@]23[C@@H]1C=C(C(O)=O)[C@@H]2COC([C@]3(O)CCl)=O

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: Aizawa S, Akutsu H, Satomi T, Kawabata S, Sasaki K. AA-57, a new antibiotic related to pentalenolactone. J Antibiot (Tokyo). 1978 Jul;31(7):729-31. PubMed PMID: 690006.