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77833-75-1

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77833-75-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77833-75-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,8,3 and 3 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 77833-75:
(7*7)+(6*7)+(5*8)+(4*3)+(3*3)+(2*7)+(1*5)=171
171 % 10 = 1
So 77833-75-1 is a valid CAS Registry Number.

77833-75-1Relevant articles and documents

A HIGHLY SELECTIVE N-PROTECTION STRATEGY FOR THE PREPARATION OF 1-N-ALKYLATED KANAMYCIN ANTIBIOTICS

Thomas, Michael B.,Williams, Michael T.

, p. 4981 - 4984 (1980)

An O to N acyl migration technique has been used to selectively acetylate the amino groups of the aminosugar rings of kanamycins A and B, leaving the amino groups on the 2-deoxy-streptamine ring unprotected.A formylation-deformylation process then convert

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