72639-32-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72639-32-8 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 2 respectively.
Calculate Digit Verification of CAS Registry Number 72639-32:
(7*7)+(6*2)+(5*6)+(4*3)+(3*9)+(2*3)+(1*2)=138
138 % 10 = 8
So 72639-32-8 is a valid CAS Registry Number.
InChI:InChI=1/C26H20ClN5O15S5.4Na/c1-11-21(27)25(30-26(28-11)48(2,34)35)29-13-3-4-15-12(7-13)8-20(51(42,43)44)22(23(15)33)32-31-18-6-5-16-17(24(18)52(45,46)47)9-14(49(36,37)38)10-19(16)50(39,40)41;;;;/h3-10,33H,1-2H3,(H,28,29,30)(H,36,37,38)(H,39,40,41)(H,42,43,44)(H,45,46,47);;;;/q;4*+1/p-4