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137937-00-9

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137937-00-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137937-00-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,9,3 and 7 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 137937-00:
(8*1)+(7*3)+(6*7)+(5*9)+(4*3)+(3*7)+(2*0)+(1*0)=149
149 % 10 = 9
So 137937-00-9 is a valid CAS Registry Number.

137937-00-9Relevant articles and documents

A general synthetic route for 1-substituted 4-oxygenated β-carbolines (synthetic studies on indoles and related compounds 41)

Suzuki, Hideharu,Iwata, Chiemi,Sakurai, Katsumi,Tokumoto, Kazuhiko,Takahashi, Hiroko,Hanada, Masako,Yokoyama, Yuusaku,Murakami, Yasuoki

, p. 1593 - 1606 (2007/10/03)

A new synthetic route for two naturally occurring 1-substituted 4-methoxy-β-carbolines (1b, c) is described. This synthetic route involves elaboration of the ester groups in ethyl indole-2-carboxylate (4b) and its 1-benzyl derivative (4a), C3-s

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