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745831-92-9

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745831-92-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 745831-92-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,5,8,3 and 1 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 745831-92:
(8*7)+(7*4)+(6*5)+(5*8)+(4*3)+(3*1)+(2*9)+(1*2)=189
189 % 10 = 9
So 745831-92-9 is a valid CAS Registry Number.

745831-92-9Relevant articles and documents

Stereoselective chloroacetate aldol reactions: Syntheses of acetate aldol equivalents and darzens glycidic esters

Ghosh, Arun K.,Kim, Jae-Hun

, p. 2725 - 2728 (2007/10/03)

Aldol reaction of the Ti-enolate derived from cis-1-tosylamido-2-indanyl chloroacetate with representative aldehydes proceeded in excellent yield and high diastereoselectivities. Removal of chlorine provided alternative access to highly diastereoselective acetate aldol equivalents or the corresponding glycidic ester condensation products.

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