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83756-26-7

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83756-26-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83756-26-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,7,5 and 6 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 83756-26:
(7*8)+(6*3)+(5*7)+(4*5)+(3*6)+(2*2)+(1*6)=157
157 % 10 = 7
So 83756-26-7 is a valid CAS Registry Number.

83756-26-7Relevant articles and documents

Protection of Primary Amines as N-Substituted 2,5-Dimethylpyrroles

Breukelman, Stephen P.,Meakins, G. Denis,Tirel, Malcolm D.

, p. 800 - 801 (1982)

Protection of a primary amine group against attack by organic or aqueous solutions of strong bases or nucleophiles is achieved by incorporation into an N-substituted 2,5-dimethylpyrrole system from which the amine group is regenerated by treatment with hydroxylamine hydrochloride.

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