439937-65-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 439937-65-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,9,9,3 and 7 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 439937-65:
(8*4)+(7*3)+(6*9)+(5*9)+(4*3)+(3*7)+(2*6)+(1*5)=202
202 % 10 = 2
So 439937-65-2 is a valid CAS Registry Number.
InChI:InChI=1/C21H21O3PS.C7H8O3S/c22-26(23,24)18-10-17-25(19-11-4-1-5-12-19,20-13-6-2-7-14-20)21-15-8-3-9-16-21;1-6-2-4-7(5-3-6)11(8,9)10/h1-9,11-16H,10,17-18H2;2-5H,1H3,(H,8,9,10)