16431-42-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16431-42-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,4,3 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 16431-42:
(7*1)+(6*6)+(5*4)+(4*3)+(3*1)+(2*4)+(1*2)=88
88 % 10 = 8
So 16431-42-8 is a valid CAS Registry Number.
InChI:InChI=1/C23H22O7/c1-11(2)16-7-13-15(29-16)6-5-12-21(13)30-20-10-28-17-9-19(27-4)18(26-3)8-14(17)23(20,25)22(12)24/h5-6,8-9,16,20,25H,1,7,10H2,2-4H3/t16-,20+,23+/m1/s1