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14773-55-8

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14773-55-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 14773-55-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,7,7 and 3 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 14773-55:
(7*1)+(6*4)+(5*7)+(4*7)+(3*3)+(2*5)+(1*5)=118
118 % 10 = 8
So 14773-55-8 is a valid CAS Registry Number.

14773-55-8Relevant articles and documents

Synthesis and application of 1-benzyl-4-methyl-5-alkoxy-1, 2, 3, 6-tetrahydropyridine derivative

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Paragraph 0108-0111, (2021/04/14)

The invention relates to the field of synthesis of drug intermediates, in particular to the field of synthesis of key intermediates for preparing anti-rheumatoid arthritis drug tofacitinib, and specifically relates to a 1-benzyl-4-methyl-5-alkoxy-1, 2, 3, 6-tetrahydropyridine compound, a synthetic method thereof, and an application of the 1-benzyl-4-methyl-5-alkoxy 1, 2, 3, 6-tetrahydropyridine compound in preparation of a key intermediate cis-1-benzyl-3-methylamino-4-methyl piperidine of tofacitinib.

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