3c,10a-dimercapto-2,3t,10,10-tetramethyl-(10ar)-2,3,10,10a-tetrahydro-pyrazino[1,2-a]indole-1,4-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 58788-21-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,7,8 and 8 respectively; the second part has 2 digits, 2 and 1 respectively. Calculate Digit Verification of CAS Registry Number 58788-21: (7*5)+(6*8)+(5*7)+(4*8)+(3*8)+(2*2)+(1*1)=179 179 % 10 = 9 So 58788-21-9 is a valid CAS Registry Number.