12138-37-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 12138-37-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,1,3 and 8 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 12138-37:
(7*1)+(6*2)+(5*1)+(4*3)+(3*8)+(2*3)+(1*7)=73
73 % 10 = 3
So 12138-37-3 is a valid CAS Registry Number.
InChI:InChI=1/2Te.U/rTe2U/c1-3-2