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138804-00-9

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138804-00-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138804-00-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,8,0 and 4 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 138804-00:
(8*1)+(7*3)+(6*8)+(5*8)+(4*0)+(3*4)+(2*0)+(1*0)=129
129 % 10 = 9
So 138804-00-9 is a valid CAS Registry Number.

138804-00-9Relevant articles and documents

LDA-catalyzed diastereoselective Michael-additions with glycine derivatives: Synthesis of 4-substituted 3-aryl-N(diphenylmethylene)glutamates followed by cyclization to 4-substituted 3-aryl-2-ethoxycarbonyl-5-oxo-pyrrolidines

Pachaly,Kang,Wahl

, p. 989 - 995 (2007/10/02)

Synthesis and stereochemistry of 4-substituted diethyl 3-aryl-N(diphenylmethylene)glutamate 3 by LDA-catalyzed Michael addition of ethyl-N(diphenylmethylene)glycinate with diethylbenzylidene-malonate or ethyl-2-cyanocinnamates, respectively. are reported.

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