A 269A

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MedKoo CAT#: 571080

CAS#: 38621-52-2

Description: A 269A is an antibiotic that is believed to be the same as LL-BL 136; it is isolated from broth of Streptomyces sp., strain.

Price and Availability

Size Price Shipping out time Quantity
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Pricing updated 2020-07-14. Prices are subject to change without notice.

A 269A 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#: 571080
Name: A 269A
CAS#: 38621-52-2
Chemical Formula: C17H29N7O8
Exact Mass: 459.2078
Molecular Weight: 459.46
Elemental Analysis: C, 44.44; H, 6.36; N, 21.34; O, 27.86

Synonym: A 269A; A269A; A269A

IUPAC/Chemical Name: (2R,3R,4R,5S,6S)-4-hydroxy-6-(((3aR,7R,7aS)-7-hydroxy-4-oxo-3a,4,5,6,7,7a-hexahydro-1H-imidazo[4,5-c]pyridin-2-yl)amino)-2-(hydroxymethyl)-5-(N-methyl-2-(methylamino)acetamido)tetrahydro-2H-pyran-3-yl carbamate


InChi Code: InChI=1S/C17H29N7O8/c1-19-4-8(27)24(2)11-12(28)13(32-16(18)30)7(5-25)31-15(11)23-17-21-9-6(26)3-20-14(29)10(9)22-17/h6-7,9-13,15,19,25-26,28H,3-5H2,1-2H3,(H2,18,30)(H,20,29)(H2,21,22,23)/t6-,7-,9-,10-,11+,12-,13+,15+/m1/s1

SMILES Code: C(N([C@@H]1[C@@H](NC=2N[C@@H]3[C@@H](CNC([C@@H]3N2)=O)O)O[C@@H]([C@@H]([C@@H]1O)OC(=O)N)CO)C)(=O)CNC

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: Kido Y, Furuie T, Suzuki K, Sakamoto K, Yokoyama Y, Uyeda M, Kinjyo J, Yahara S, Nohara T, Shibata M. A streptothricin-like antibiotic mixture, A-269A (and A-269A'). J Antibiot (Tokyo). 1987 Dec;40(12):1698-706. PubMed PMID: 2828297.