4189-91-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4189-91-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,1,8 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 4189-91:
(6*4)+(5*1)+(4*8)+(3*9)+(2*9)+(1*1)=107
107 % 10 = 7
So 4189-91-7 is a valid CAS Registry Number.
InChI:InChI=1/C28H36O8/c1-15(29)34-18-7-10-25(3)19-8-11-26(4)22(17-5-6-21(31)33-14-17)23(35-16(2)30)24-28(26,36-24)20(19)9-12-27(25,32)13-18/h5-6,14,18-20,22-24,32H,7-13H2,1-4H3/t18-,19?,20?,22-,23+,24+,25+,26+,27-,28+/m0/s1