19544-67-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19544-67-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,5,4 and 4 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 19544-67:
(7*1)+(6*9)+(5*5)+(4*4)+(3*4)+(2*6)+(1*7)=133
133 % 10 = 3
So 19544-67-3 is a valid CAS Registry Number.
InChI:InChI=1/2C10H8O3S.Ca/c2*11-14(12,13)10-7-3-5-8-4-1-2-6-9(8)10;/h2*1-7H,(H,11,12,13);/q;;+2/p-2