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89665-00-9

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89665-00-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89665-00-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,6,6 and 5 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 89665-00:
(7*8)+(6*9)+(5*6)+(4*6)+(3*5)+(2*0)+(1*0)=179
179 % 10 = 9
So 89665-00-9 is a valid CAS Registry Number.

89665-00-9Relevant articles and documents

HETEROCYCLIC COMPOUNDS, IV. STRUCTURE OF THE SALTS OF (3,4-DIMETHOXYPHENYL)-7,8-DIMETHOXY-5-ETHYL-4-METHYL-5H-2,3-BENZODIAZEPINE

Neszmelyi, A.,Lang, T.,Koeroesi, J.

, p. 293 - 300 (2007/10/02)

1-(3,4-Dimethoxyphenyl)-7,8-ethyl-4-methyl-5H-2,3-benzodiazepine (1) a representative of 1-aryl-5H-2,3-benzodiazepines, is a weak base and - even from an excess of strong protonic acids - can only bind one proton, notably on the N-3 atom.In contrast with

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