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(R)-3-tert-Butoxycarbonylamino-3-{5-[(5R,6R,7S)-6-(tert-butyl-dimethyl-silanyloxy)-9-iodo-2,2-dimethyl-1,3-dioxa-spiro[4.4]non-8-en-7-yloxy]-6-chloro-pyridin-2-yl}-propionic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

253189-21-8

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253189-21-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 253189-21-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,3,1,8 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 253189-21:
(8*2)+(7*5)+(6*3)+(5*1)+(4*8)+(3*9)+(2*2)+(1*1)=138
138 % 10 = 8
So 253189-21-8 is a valid CAS Registry Number.

253189-21-8Upstream product

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