137830-19-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137830-19-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,8,3 and 0 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 137830-19:
(8*1)+(7*3)+(6*7)+(5*8)+(4*3)+(3*0)+(2*1)+(1*9)=134
134 % 10 = 4
So 137830-19-4 is a valid CAS Registry Number.
InChI:InChI=1/C28H32O17/c1-40-10-5-13(33)17-14(6-10)41-24(9-2-3-11(31)12(32)4-9)25(20(17)36)44-28-26(22(38)19(35)16(8-30)43-28)45-27-23(39)21(37)18(34)15(7-29)42-27/h2-6,15-16,18-19,21-23,26-35,37-39H,7-8H2,1H3/t15-,16-,18-,19-,21+,22-,23+,26-,27+,28+/m1/s1