72639-36-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72639-36-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,6,3 and 9 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 72639-36:
(7*7)+(6*2)+(5*6)+(4*3)+(3*9)+(2*3)+(1*6)=142
142 % 10 = 2
So 72639-36-2 is a valid CAS Registry Number.
InChI:InChI=1/C22H18ClN5O12S4.2K.Na/c1-10-18(23)21(26-22(24-10)41(2,30)31)25-14-9-12(42(32,33)34)7-11-8-16(44(38,39)40)19(20(29)17(11)14)28-27-13-5-3-4-6-15(13)43(35,36)37;;;/h3-9,27H,1-2H3,(H,24,25,26)(H,32,33,34)(H,35,36,37)(H,38,39,40);;;/q;3*+1/p-3/b28-19+;;;