4207-90-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4207-90-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,0 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 4207-90:
(6*4)+(5*2)+(4*0)+(3*7)+(2*9)+(1*0)=73
73 % 10 = 3
So 4207-90-3 is a valid CAS Registry Number.
InChI:InChI=1/C34H40O16/c1-13(11-45-34-32(29(40)27(38)22(9-35)49-34)50-33-30(41)28(39)23(10-36)48-33)18-7-16-17(46-18)5-4-14-26(37)25-15-6-20(42-2)21(43-3)8-19(15)44-12-24(25)47-31(14)16/h4-6,8,18,22-25,27-30,32-36,38-41H,1,7,9-12H2,2-3H3/t18?,22-,23-,24?,25?,27-,28-,29+,30+,32-,33+,34+/m1/s1