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C23H22N4O5S is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

639469-45-7

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639469-45-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 639469-45-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,9,4,6 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 639469-45:
(8*6)+(7*3)+(6*9)+(5*4)+(4*6)+(3*9)+(2*4)+(1*5)=207
207 % 10 = 7
So 639469-45-7 is a valid CAS Registry Number.

639469-45-7Downstream Products

639469-45-7Relevant articles and documents

Process and intermediates for making non-nucleoside HIV-1 reverse transcriptase inhibitors

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Page/Page column 4, (2010/02/05)

A process and novel intermediates for making compounds of the formula I: wherein: R2 is selected from the group consisting of H, F, Cl, C1-4 alkyl, C3-4 cycloalkyl and CF3; R4 is H or Me; R5 is H, Me or Et, with the proviso that R4 and R5 are not both Me, and if R4 is Me then R5 cannot be Et; R11 is Me, Et, cyclopropyl, propyl, isopropyl, or cyclobutyl; and Q is selected from the group consisting of:

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