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639785-75-4

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639785-75-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 639785-75-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,9,7,8 and 5 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 639785-75:
(8*6)+(7*3)+(6*9)+(5*7)+(4*8)+(3*5)+(2*7)+(1*5)=224
224 % 10 = 4
So 639785-75-4 is a valid CAS Registry Number.

639785-75-4Downstream Products

639785-75-4Relevant articles and documents

Design and Synthesis of Novel Rofecoxib Analogs as Potential Cyclooxygenase (COX-2) Inhibitors: Replacement of the Methylsulfonyl Pharmacophore by a Sulfonylazide Bioisostere

Uddin, Md. Jashim,Rao, P.N. Praveen,Knaus, Edward E.

, p. 861 - 868 (2007/10/03)

A group of rofecoxib analogs, having a sulfonylazide (SO2N 3) substituent in place of the methanesulfonyl (SO2CH 3) pharmacophore at the meta-position viz 3-(4-methyl, 4-methoxy, or 4-ethoxyphenyl)-4-(3-sulfonyl

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