2609-99-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2609-99-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,6,0 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 2609-99:
(6*2)+(5*6)+(4*0)+(3*9)+(2*9)+(1*9)=96
96 % 10 = 6
So 2609-99-6 is a valid CAS Registry Number.
InChI:InChI=1/C33H24N6O17S4.4Na/c40-25-7-3-19(57(45,46)47)13-23(25)36-38-29-27(42)11-15-9-18(2-6-22(15)32(29)60(54,55)56)35-33(44)34-17-1-5-21-16(10-17)12-28(59(51,52)53)30(31(21)43)39-37-24-14-20(58(48,49)50)4-8-26(24)41;;;;/h1-14,36-37,40-41H,(H2,34,35,44)(H,45,46,47)(H,48,49,50)(H,51,52,53)(H,54,55,56);;;;/q;4*+1/p-4/b38-29-,39-30-;;;;