132971-65-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 132971-65-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,9,7 and 1 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 132971-65:
(8*1)+(7*3)+(6*2)+(5*9)+(4*7)+(3*1)+(2*6)+(1*5)=134
134 % 10 = 4
So 132971-65-4 is a valid CAS Registry Number.
InChI:InChI=1/C27H21NO12/c1-6-3-9-14(21(33)12(6)26(38)28-7(2)27(39)40)15-16(25(37)20(9)32)24(36)18-17(23(15)35)19(31)10-4-8(29)5-11(30)13(10)22(18)34/h3-5,7,20,25,29-30,32-33,35-37H,1-2H3,(H,28,38)(H,39,40)/t7-,20?,25?/m1/s1