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7697-33-8

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7697-33-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7697-33-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,9 and 7 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 7697-33:
(6*7)+(5*6)+(4*9)+(3*7)+(2*3)+(1*3)=138
138 % 10 = 8
So 7697-33-8 is a valid CAS Registry Number.

7697-33-8Relevant articles and documents

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Crandall,E.W. et al.

, p. 134 - 136 (1967)

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