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188641-37-4

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188641-37-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188641-37-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,6,4 and 1 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 188641-37:
(8*1)+(7*8)+(6*8)+(5*6)+(4*4)+(3*1)+(2*3)+(1*7)=174
174 % 10 = 4
So 188641-37-4 is a valid CAS Registry Number.

188641-37-4Relevant articles and documents

A novel stereoselective tin-free radical protocol for the enantioselective synthesis of pyrrolidinones and its application to the synthesis of?biologically active GABA-derivatives

Rodríguez-Soria, Verónica,Quintero, Leticia,Sartillo-Piscil, Fernando

, p. 2750 - 2754 (2008/09/19)

Optically pure 4-alkyl-pyrrolin-2-ones were synthesized from chiral N-allyl-α-bromoacetamides in high selective and stereo-controlled fashion, via a sequential 5-exo-trig radical cyclization-hydrogen or bromine atom-transfer process, under non-tin conditi

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