Fasciculic acid B

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

MedKoo CAT#: 598331

CAS#: 126882-55-1

Description: Fasciculic acid B is the ester of fasciculol B & 3-hydroxy-3-methylglutaric acid; calmodulin antagonist from mushroom Naematoloma fasciculare.

Chemical Structure

Fasciculic acid B
CAS# 126882-55-1

Theoretical Analysis

MedKoo Cat#: 598331
Name: Fasciculic acid B
CAS#: 126882-55-1
Chemical Formula: C36H60O9
Exact Mass: 636.4237
Molecular Weight: 636.86
Elemental Analysis: C, 67.89; H, 9.50; O, 22.61

Price and Availability

This product is not in stock, which may be available by custom synthesis. For cost-effective reason, minimum order is 1g (price is usually high, lead time is 2~3 months, depending on the technical challenge). Quote less than 1g will not be provided. To request quote, please email to sales @medkoo.com or click below button.
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Synonym: Fasciculic acid B;

IUPAC/Chemical Name: 5-(((2R,3R,5R,10S,12S,13R,14S,17R)-17-((2R,5R)-5,6-dihydroxy-6-methylheptan-2-yl)-3,12-dihydroxy-4,4,10,13,14-pentamethyl-2,3,4,5,6,7,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-2-yl)oxy)-3-hydroxy-3-methyl-5-oxopentanoic acid


InChi Code: InChI=1S/C36H60O9/c1-20(10-13-26(37)32(4,5)43)21-14-15-35(8)22-11-12-25-31(2,3)30(42)24(45-29(41)19-33(6,44)18-28(39)40)17-34(25,7)23(22)16-27(38)36(21,35)9/h20-21,24-27,30,37-38,42-44H,10-19H2,1-9H3,(H,39,40)/t20-,21-,24-,25+,26-,27+,30+,33?,34-,35+,36+/m1/s1

SMILES Code: CC1(C)[C@@H](O)[C@H](OC(CC(C)(O)CC(O)=O)=O)C[C@]2(C)C3=C([C@@]4(CC[C@@H]([C@]4([C@@H](O)C3)C)[C@H](C)CC[C@@H](O)C(C)(O)C)C)CC[C@@]12[H]

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: Soluble in DMSO

Shelf Life: >3 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: 2934.99.03.00

Preparing Stock Solutions

The following data is based on the product molecular weight 636.86 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

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1: Takahashi A, Kusano G, Ohta T, Ohizumi Y, Nozoe S. Fasciculic acids A, B and C as calmodulin antagonists from the mushroom Naematoloma fasciculare. Chem Pharm Bull (Tokyo). 1989 Dec;37(12):3247-50. PubMed PMID: 2632070.