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4-Bromo-benzoic acid (2R,3aS,4S,5S,5aS,8aR,11aR,11bS,11cS)-5-hydroxy-2,3a,6,6,10,10,11c-heptamethyl-2-vinyl-dodecahydro-3,9,11-trioxa-cyclohepta[def]phenanthren-4-yl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

157201-97-3

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157201-97-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157201-97-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,2,0 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 157201-97:
(8*1)+(7*5)+(6*7)+(5*2)+(4*0)+(3*1)+(2*9)+(1*7)=123
123 % 10 = 3
So 157201-97-3 is a valid CAS Registry Number.

157201-97-3Relevant academic research and scientific papers

Structures of Five New Highly Oxygenated Labdane-Type Diterpenoids, Ptychantins A-E, Closely Related to Forskolin from the Liverwort Ptychanthus striatus

Hashimoto, Toshihiro,Horie, Miho,Toyota, Masao,Taira, Zenei,Takeda, Reiji,et al.

, p. 5457 - 5460 (1994)

Five novel labdane-type diterpenoids, named ptychantins A-E, closely related to forskolin have been isolated from the liverwort Ptychanthus striatus, and their absolute structures established by a combination of high resolution NMR and CD spectra, X-ray crystallographic analysis and chemical degradation.

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