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89990-63-6

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89990-63-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89990-63-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,9,9 and 0 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 89990-63:
(7*8)+(6*9)+(5*9)+(4*9)+(3*0)+(2*6)+(1*3)=206
206 % 10 = 6
So 89990-63-6 is a valid CAS Registry Number.

89990-63-6Relevant articles and documents

REACTIONS OF 5-ARYLIDENE-2-THIOHYDANTOINS, SYNTHESIS OF NEW CONDENSED IMIDAZOTHIAZOLES

Daboun, Hamed A.,Abdel-Fattah, A. M.,Hussein, M. M.,Shalaby, A. F. A.

, p. 1001 - 1007 (2007/10/02)

5-Arylidene-2-thiohydantioins reacted with 2-bromopropionic acid or ethyl 2-bromobutanoate and phenacyl bromide yielded corresponding S-substituted mercapto acids or esters and S-phenacyl derivatives, respectively.Cyclization of these compounds resulted i

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