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888264-61-7

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888264-61-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 888264-61-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,8,2,6 and 4 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 888264-61:
(8*8)+(7*8)+(6*8)+(5*2)+(4*6)+(3*4)+(2*6)+(1*1)=227
227 % 10 = 7
So 888264-61-7 is a valid CAS Registry Number.

888264-61-7Relevant articles and documents

Parallel synthesis of 1,2,4-oxadiazoles from carboxylic acids using an improved, uronium-based, activation

Poulain, Rébecca F.,Tartar, André L.,Déprez, Benot P.

, p. 1495 - 1498 (2001)

We describe the synthesis of 1,2,4-oxadiazoles from carboxylic acids and amidoximes using 2-(1H-benzotriazole-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate (TBTU) as an activating agent of the carboxylic acid function for the O-acylation step. This method was used for the synthesis of a library of 24 1,2,4-oxadiazoles.

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