149542-21-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 149542-21-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,5,4 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 149542-21:
(8*1)+(7*4)+(6*9)+(5*5)+(4*4)+(3*2)+(2*2)+(1*1)=142
142 % 10 = 2
So 149542-21-2 is a valid CAS Registry Number.
InChI:InChI=1/C29H49ClN7O17P3S/c1-4-5-6-7-8-17(30)28(42)58-12-11-32-19(38)9-10-33-26(41)23(40)29(2,3)14-51-57(48,49)54-56(46,47)50-13-18-22(53-55(43,44)45)21(39)27(52-18)37-16-36-20-24(31)34-15-35-25(20)37/h15-18,21-23,27,39-40H,4-14H2,1-3H3,(H,32,38)(H,33,41)(H,46,47)(H,48,49)(H2,31,34,35)(H2,43,44,45)/t17?,18-,21-,22-,23+,27-/m1/s1