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158962-74-4

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158962-74-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 158962-74-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,9,6 and 2 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 158962-74:
(8*1)+(7*5)+(6*8)+(5*9)+(4*6)+(3*2)+(2*7)+(1*4)=184
184 % 10 = 4
So 158962-74-4 is a valid CAS Registry Number.

158962-74-4Relevant articles and documents

Conformationally Restricted Criegee Intermediates: Evidence for Formation and Stereoelectronically Controlled Fragmentation

Chandrasekhar, Sosale,Roy, Chandra Deo

, p. 2141 - 2144 (2007/10/02)

The Bayer-Villiger reaction of 2-(2-oxocyclohexyl)acetic acid occurs via a bicyclic Criegee intermediate, which fragments with stereoelectronic control, as evidenced by product analysis; the reaction of the but-2-yl ester and of 2-(2-oxocyclopentyl)acetic acid also show evidence of such stereoelectronic control, but less convincingly.

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