133686-28-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133686-28-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,6,8 and 6 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 133686-28:
(8*1)+(7*3)+(6*3)+(5*6)+(4*8)+(3*6)+(2*2)+(1*8)=139
139 % 10 = 9
So 133686-28-9 is a valid CAS Registry Number.
InChI:InChI=1/2C21H18N8O8S4.2Na/c2*22-21-24-10(7-40-21)14(26-37-4-9-1-11(30)12(31)3-28(9)36)17(32)25-15-18(33)29-16(20(34)35)8(6-39-19(15)29)5-38-13-2-23-27-41-13;;/h2*1-3,7,15,19,31,36H,4-6H2,(H2,22,24)(H,25,32)(H,34,35);;/q;;2*+1/p-2/b2*26-14+;;/t15-,19-;;;/m1.../s1