21871-14-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21871-14-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,7 and 1 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 21871-14:
(7*2)+(6*1)+(5*8)+(4*7)+(3*1)+(2*1)+(1*4)=97
97 % 10 = 7
So 21871-14-7 is a valid CAS Registry Number.
InChI:InChI=1/C19H24O7/c1-9(2)16(20)25-13-7-19-14(26-19)5-4-11(8-23-18(19)22)6-12-15(13)10(3)17(21)24-12/h6,9,12-15,18,22H,3-5,7-8H2,1-2H3/b11-6-/t12-,13+,14-,15+,18-,19-/m1/s1