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67337-61-5

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67337-61-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67337-61-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,3,3 and 7 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 67337-61:
(7*6)+(6*7)+(5*3)+(4*3)+(3*7)+(2*6)+(1*1)=145
145 % 10 = 5
So 67337-61-5 is a valid CAS Registry Number.

67337-61-5Relevant articles and documents

Design and reactivity of organic functional groups - Preparation and nucleophilic displacement reactions of imidazole-1-sulfonates (imidazylates)

Vatele, Jean-Michel,Hanessian, Stephen

, p. 10557 - 10568 (2007/10/03)

Imidazole-1-sulfonate, a new type of leaving group by remote activation, allows facile S(N)2 substitution reactions at sterically crowded centers with various nucleophiles under mild conditions. It could be easily prepared from alcohols with cheap reagent

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