133337-28-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133337-28-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,3,3 and 7 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 133337-28:
(8*1)+(7*3)+(6*3)+(5*3)+(4*3)+(3*7)+(2*2)+(1*8)=107
107 % 10 = 7
So 133337-28-7 is a valid CAS Registry Number.
InChI:InChI=1/C35H55N7O9/c1-4-20(2)30(37)34(50)39-21(3)32(48)41-26(18-22-10-12-24(43)13-11-22)28(44)19-23(8-5-6-16-36)35(51)42-17-7-9-27(42)33(49)40-25(31(38)47)14-15-29(45)46/h10-13,20-21,23,25-27,30,43H,4-9,14-19,36-37H2,1-3H3,(H2,38,47)(H,39,50)(H,40,49)(H,41,48)(H,45,46)/t20-,21-,23+,25-,26-,27-,30-/m0/s1