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191670-98-1

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191670-98-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191670-98-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,6,7 and 0 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 191670-98:
(8*1)+(7*9)+(6*1)+(5*6)+(4*7)+(3*0)+(2*9)+(1*8)=161
161 % 10 = 1
So 191670-98-1 is a valid CAS Registry Number.

191670-98-1Downstream Products

191670-98-1Relevant articles and documents

Propenone derivatives

-

, (2008/06/13)

The present invention relates to propenone derivatives represented by the following formula (I): STR1 wherein R1 represents hydrogen, substituted or unsubstituted lower alkyl, substituted or unsubstituted aryl, or YR5 (wherein Y represents S or O; and R5 represents substituted or unsubstituted lower alkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, or a substituted or unsubstituted cyclic ether residue); R2 and R3 independently represent hydrogen, lower alkyl, or substituted or unsubstituted aralkyl, or alternatively R2 and R3 are combined to form substituted or unsubstituted methylene or ethylene; R4 represents hydrogen, hydroxy, lower alkyl, substituted or unsubstituted aralkyl, lower alkoxy, substituted or unsubstituted aralkyloxy, or halogen; and X represents substituted or unsubstituted indolyl; or pharmaceutically acceptable salts thereof.

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