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187945-36-4

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187945-36-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 187945-36-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,9,4 and 5 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 187945-36:
(8*1)+(7*8)+(6*7)+(5*9)+(4*4)+(3*5)+(2*3)+(1*6)=194
194 % 10 = 4
So 187945-36-4 is a valid CAS Registry Number.

187945-36-4Relevant academic research and scientific papers

B,B-dihaloalkylboranes as efficient reagents for the stereoselective synthesis of Syn-aldols

Ramachandran, P. Veeraraghavan,Wei-Chu, Xu,Brown, Herbert C.

, p. 769 - 772 (1997)

The easily synthesized B,B-dihaloalkylboranes, in the presence of either Et3N or i-Pr2NEt, converts ethyl ketones, RCOEt, to 96-≤ 99% Z-enolates, converted by aldehydes to essentially pure syn-aldols.

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