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138911-91-8

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138911-91-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138911-91-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,1 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 138911-91:
(8*1)+(7*3)+(6*8)+(5*9)+(4*1)+(3*1)+(2*9)+(1*1)=148
148 % 10 = 8
So 138911-91-8 is a valid CAS Registry Number.

138911-91-8Downstream Products

138911-91-8Relevant articles and documents

Reactions of 6-aminopyrimidines with 2-dimethylaminomethylenetetralone. Regiospecific synthesis of 5,6-dihydrobenzo[h]pyrimido[4,5-b]quinolines

Quiroga,Insuasty,Insuasty,Abonia,Ortiz,Sanchez,Nogueras

, p. 339 - 341 (2001)

Benzo[h]pyrimido[4,5-b]quinolines (3) have been synthesized via a regiospecific cyclocondensation reaction between 6-aminopyrimidines (1) and 2-dimethylaminomethylentetralone hydrochloride (2). The linear structure of the final compounds were determined by nmr measurements, especially by 1H, 1H-, 1H,13C COSY and DEPT experiments.

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