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755712-13-1

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755712-13-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 755712-13-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,5,5,7,1 and 2 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 755712-13:
(8*7)+(7*5)+(6*5)+(5*7)+(4*1)+(3*2)+(2*1)+(1*3)=171
171 % 10 = 1
So 755712-13-1 is a valid CAS Registry Number.

755712-13-1Relevant articles and documents

PROCESS FOR PREPARING 7H-PYRROLO[2,3-d]PYRIMIDINE DERIVATIVES AND SYNTHETIC INTERMEDIATES THEREOF

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Paragraph 0388-0392, (2020/07/23)

The present invention provides processes for preparing 7H-pyrrolo[2,3-d]pyrimidine derivatives, which are useful as a Janus kinase (JAK) inhibitor, intermediates thereof, and processes for preparing the intermediates. The present invention provides processes for preparing 3-[(3S, 4R)-3-methyl-6-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1,6-diazaspiro[3.4]octan-1-yl]-3-oxopropanenitrile using salts of (3S,4R)-1-benzyl-3-methyl-1,6-diazaspiro[3.4]octane with organic acids.

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