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1223593-43-8

1223593-43-8

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1223593-43-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1223593-43-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,3,5,9 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1223593-43:
(9*1)+(8*2)+(7*2)+(6*3)+(5*5)+(4*9)+(3*3)+(2*4)+(1*3)=138
138 % 10 = 8
So 1223593-43-8 is a valid CAS Registry Number.

1223593-43-8Relevant articles and documents

Super silyl stereo-directing groups for complete 1,5-Syn and -anti stereoselectivities in the aldol reactions of β-siloxy methyl ketones with aldehydes

Yamaoka, Yousuke,Yamamoto, Hisashi

supporting information; experimental part, p. 5354 - 5356 (2010/07/04)

In this communication, we report that substrate-controlled 1,5-syn and -anti stereoinduction in the aldol reaction of β-tris(trialkylsilyl)siloxy methyl ketones can be achieved with high diastereoselectivities. Tris(trialkylsilyl)silyl groups are easily p

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