118851-98-2 Usage
Derived from
2,5-Thiophenedicarboxylic acid
Structure
Contains two methoxy groups and two methyl groups attached to the thiophenedicarboxylic acid
Uses
Commonly used in organic synthesis and as a building block for pharmaceuticals, agricultural chemicals, and other fine chemicals
Valuable component
Due to its unique structure and properties, it is valuable in the development of new chemical compounds and materials
Check Digit Verification of cas no
The CAS Registry Mumber 118851-98-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,8,5 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 118851-98:
(8*1)+(7*1)+(6*8)+(5*8)+(4*5)+(3*1)+(2*9)+(1*8)=152
152 % 10 = 2
So 118851-98-2 is a valid CAS Registry Number.
118851-98-2Relevant articles and documents
Process for the alkylation of 3,4-dihydroxythiophene-2,5-dicarboxylic esters
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, (2008/06/13)
The invention relates to a process for the alkylation of 3,4-dihydroxythiophene-2, 5-dicarboxylic esters or their alkali metal or alkaline earth metal salts with alkylating agents in a polar diluent in the presence of quaternary onium salts.
