641-94-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 641-94-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,4 and 1 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 641-94:
(5*6)+(4*4)+(3*1)+(2*9)+(1*4)=71
71 % 10 = 1
So 641-94-1 is a valid CAS Registry Number.
InChI:InChI=1/C26H30O12/c1-26(2,35)8-7-13-15(36-25-22(34)20(32)18(30)16(10-27)37-25)9-14(29)17-19(31)21(33)23(38-24(13)17)11-3-5-12(28)6-4-11/h3-6,9,16,18,20,22,25,27-30,32-35H,7-8,10H2,1-2H3/t16-,18-,20-,22-,25-/m1/s1