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191677-71-1

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191677-71-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191677-71-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,6,7 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 191677-71:
(8*1)+(7*9)+(6*1)+(5*6)+(4*7)+(3*7)+(2*7)+(1*1)=171
171 % 10 = 1
So 191677-71-1 is a valid CAS Registry Number.

191677-71-1Relevant articles and documents

CONTRACEPTIVE AGENTS

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Paragraph 0238-0239, (2014/02/15)

The invention provides compounds of formula I, II, III, or IV: wherein R1 to R11, X, and Y have any of the values defined in the specification. The compounds inhibit Na, K-ATPase α4 and are useful as contraceptive agents.

NEUROSTEROID COMPOUNDS

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Page/Page column 9, (2010/09/18)

The present invention relates to novel neurosteroid derivatives with anti-apoptotic, neuroprotective and neurogenic properties that act on the nervous system as well as methods for making the same and their applications in the treatment and/or prevention

Synthesis of xestobergsterol A from dehydroepiandrosterone

Nakamura, Atsuko,Kaji, Yuko,Saida, Kana,Ito, Michiko,Nagatoshi, Yumi,Hara, Noriyuki,Fujimoto, Yoshinori

, p. 6373 - 6376 (2007/10/03)

Xestobergsterol A, a potent inhibitor of histamine release, has been synthesized from dehydroepiandrosterone in a route that used introduction of a novel 15-oxygen functionality, side-chain construction via the orthoester Claisen rearrangement and TBAF-pr

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