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1092578-43-2

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1092578-43-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1092578-43-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,9,2,5,7 and 8 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1092578-43:
(9*1)+(8*0)+(7*9)+(6*2)+(5*5)+(4*7)+(3*8)+(2*4)+(1*3)=172
172 % 10 = 2
So 1092578-43-2 is a valid CAS Registry Number.

1092578-43-2Downstream Products

1092578-43-2Relevant articles and documents

Method for preparing tofacitinib related impurities

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, (2017/08/29)

The invention discloses a method for preparing tofacitinib related impurities. 1-benzyl-4-methyl-3-methylamino-piperidine is taken as a raw material, the tofacitinib related impurities (TFTN-I and TFTN-II) are obtained through a series of reactions, and the yield and purity are improved by modes of extracting, concentrating and purifying reaction liquid. The tofacitinib related impurities are easy to operate in process and high in purity and have very good market application values. A qualified comparison product is provided for quality control over tofacitinib.

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