17181-21-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17181-21-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,1,8 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 17181-21:
(7*1)+(6*7)+(5*1)+(4*8)+(3*1)+(2*2)+(1*1)=94
94 % 10 = 4
So 17181-21-4 is a valid CAS Registry Number.
InChI:InChI=1/C18H24O12S3/c1-18-7-6-13-12-5-3-11(28-31(19,20)21)8-10(12)2-4-14(13)15(18)9-16(29-32(22,23)24)17(18)30-33(25,26)27/h3,5,8,13-17H,2,4,6-7,9H2,1H3,(H,19,20,21)(H,22,23,24)(H,25,26,27)/t13-,14-,15+,16-,17+,18+/m1/s1