MedKoo Cat#: 464791 | Name: Benastatin B

Description:

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

Benastatin B is a polyketide synthase-derived benastatin that has been found in Streptomyces and has diverse biological activities. It inhibits glutathione S-transferase (GST; Ki = 3.7 µM for the rat liver enzyme).2 Benastatin B also inhibits the transglycosylase activity of A. baumannii, C. difficile, E. coli, and S. aureus recombinant penicillin-binding proteins (PBPs; IC50s = 16, 53.3, 30.7, and 31.6 µM, respectively).3 It is active against several bacteria, including methicillin-resistant S. aureus (MRSA; MIC = 3.12 µg/ml).

Chemical Structure

Benastatin B
Benastatin B
CAS#138968-86-2

Theoretical Analysis

MedKoo Cat#: 464791

Name: Benastatin B

CAS#: 138968-86-2

Chemical Formula: C30H30O7

Exact Mass: 502.1992

Molecular Weight: 502.56

Elemental Analysis: C, 71.70; H, 6.02; O, 22.28

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Synonym
Benastatin B; Benastatin-B;
IUPAC/Chemical Name
1,7,9,11-tetrahydroxy-13,13-dimethyl-8-oxo-3-pentyl-5,6,8,13-tetrahydrobenzo[a]tetracene-2-carboxylic acid
InChi Key
FUKMCLKFEWEFSC-UHFFFAOYSA-N
InChi Code
InChI=1S/C30H30O7/c1-4-5-6-7-14-10-15-8-9-17-18(22(15)27(34)23(14)29(36)37)13-20-25(26(17)33)28(35)24-19(30(20,2)3)11-16(31)12-21(24)32/h10-13,31-34H,4-9H2,1-3H3,(H,36,37)
SMILES Code
O=C(O)C1=C(C=C2CCC3=C(O)C4=C(C(C)(C5=C(C4=O)C(O)=CC(O)=C5)C)C=C3C2=C1O)CCCCC
Appearance
Solid powder
Purity
>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).
Solubility
To be determined
Shelf Life
>2 years if stored properly
Drug Formulation
To be determined
Stock Solution Storage
0 - 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code
2934.99.9001
More Info

Preparing Stock Solutions

The following data is based on the product molecular weight 502.56 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
1: Lackner G, Schenk A, Xu Z, Reinhardt K, Yunt ZS, Piel J, Hertweck C. Biosynthesis of pentangular polyphenols: deductions from the benastatin and griseorhodin pathways. J Am Chem Soc. 2007 Aug 1;129(30):9306-12. doi: 10.1021/ja0718624. Epub 2007 Jul 11. PMID: 17625850. 2: Xu Z, Schenk A, Hertweck C. Molecular analysis of the benastatin biosynthetic pathway and genetic engineering of altered fatty acid-polyketide hybrids. J Am Chem Soc. 2007 May 9;129(18):6022-30. doi: 10.1021/ja069045b. Epub 2007 Apr 17. PMID: 17439117. 3: Aoyama T, Kojima F, Yamazaki T, Tatee T, Abe F, Muraoka Y, Naganawa H, Aoyagi T, Takeuchi T. Benastatins C and D, new inhibitors of glutathione S-transferase, produced by Streptomyces sp. MI384-DF12. Production, isolation, structure determination and biological activities. J Antibiot (Tokyo). 1993 May;46(5):712-8. doi: 10.7164/antibiotics.46.712. PMID: 8514625. 4: Aoyama T, Naganawa H, Muraoka Y, Nakamura H, Aoyagi T, Takeuchi T, Iitaka Y. Benastatins A and B, new inhibitors of glutathione S-transferase, produced by Streptomyces sp. MI384-DF12. II. Structure determination of benastatins A and B. J Antibiot (Tokyo). 1992 Sep;45(9):1391-6. doi: 10.7164/antibiotics.45.1391. Erratum in: J Antibiot (Tokyo) 1992 Nov;45(11):C6-7. PMID: 1429223. 5: Aoyagi T, Aoyama T, Kojima F, Matsuda N, Maruyama M, Hamada M, Takeuchi T. Benastatins A and B, new inhibitors of glutathione S-transferase, produced by Streptomyces sp. MI384-DF12. I. Taxonomy, production, isolation, physico- chemical properties and biological activities. J Antibiot (Tokyo). 1992 Sep;45(9):1385-90. doi: 10.7164/antibiotics.45.1385. PMID: 1429222.