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91597-62-5

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91597-62-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91597-62-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,5,9 and 7 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 91597-62:
(7*9)+(6*1)+(5*5)+(4*9)+(3*7)+(2*6)+(1*2)=165
165 % 10 = 5
So 91597-62-5 is a valid CAS Registry Number.

91597-62-5Downstream Products

91597-62-5Relevant articles and documents

ADDITION REACTIONS TO BICYCLOBUTANE DERIVATIVES. THE REGIOSELECTIVITY OF THE ADDITION OF METHANOL AND METHANETHIOL TO 3-VINYLCYCLOBUTANE-1-CARBONITRILE

Razin, V. V.,Vasin, V. A.

, p. 669 - 673 (2007/10/02)

3-Vinylcyclobutane-1-carbonitrile adds anionoid nucleophiles (sodium methoxide and methanethiolate) in methanol strictly regioselectively at the central C-C bond with the formation of 3-vinyl-3-methoxy(methylthio)cyclobutane-1-carbonitrile (1,3-addition).The same substrate adds methanol under the catalytic influence of perchloric acid with the formation of both the 1,3-addition product and the 1,5-addition product, i.e., 3-(2-methoxyethylidene)cyclobutane-1-carbonitrile (with the regioisomers in a ratio of 3:2).

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