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89718-81-0

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89718-81-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89718-81-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,7,1 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 89718-81:
(7*8)+(6*9)+(5*7)+(4*1)+(3*8)+(2*8)+(1*1)=190
190 % 10 = 0
So 89718-81-0 is a valid CAS Registry Number.

89718-81-0Downstream Products

89718-81-0Relevant articles and documents

Synthesis of 5-Aryl-1,4-benzoxazepine and 6-Phenyl-2H-1,5-benzoxazocine Derivatives

Bremner, John B.,Browne, Elaine J.,Gunawardana, Indrani W. K.

, p. 129 - 141 (2007/10/02)

Four 5-aryl-2,3-dihydro-1,4-benzoxazepines (5a-d), with electron-releasing substituents, were prepared by a Bischler-Napieralski-type reaction of N-(2-aryloxyethyl)benzamides with phosphorus oxychloride in butanenitrile or ethanenitrile.Analogous 2,3-dihy

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