Pyrazinecarboxylic acid, 3,4,5,6-tetrahydro-5,5,6,6-tetramethyl-3-oxo-,
ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 92958-09-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,2,9,5 and 8 respectively; the second part has 2 digits, 0 and 9 respectively. Calculate Digit Verification of CAS Registry Number 92958-09: (7*9)+(6*2)+(5*9)+(4*5)+(3*8)+(2*0)+(1*9)=173 173 % 10 = 3 So 92958-09-3 is a valid CAS Registry Number.
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ethyl ester