13551-21-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13551-21-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,5,5 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 13551-21:
(7*1)+(6*3)+(5*5)+(4*5)+(3*1)+(2*2)+(1*1)=78
78 % 10 = 8
So 13551-21-8 is a valid CAS Registry Number.
InChI:InChI=1/C14H23NO12/c1-4(18)15-5(2-16)11(7(20)6(19)3-17)26-14-10(23)8(21)9(22)12(27-14)13(24)25/h2,5-12,14,17,19-23H,3H2,1H3,(H,15,18)(H,24,25)/t5-,6+,7+,8-,9-,10+,11+,12-,14+/m0/s1