118869-52-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 118869-52-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,8,6 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 118869-52:
(8*1)+(7*1)+(6*8)+(5*8)+(4*6)+(3*9)+(2*5)+(1*2)=166
166 % 10 = 6
So 118869-52-6 is a valid CAS Registry Number.
InChI:InChI=1/C20H21N7O5/c1-10-24-17(21)16-18(25-10)23-9-13(26-16)8-22-12-4-2-11(3-5-12)19(30)27-14(20(31)32)6-7-15(28)29/h2-5,9,14,22H,6-8H2,1H3,(H,27,30)(H,28,29)(H,31,32)(H2,21,23,24,25)/t14-/m0/s1
118869-52-6Relevant articles and documents
Synthesis and biological activity of the 2-desamino and 2-desamino-2-methyl analogues of aminopterin and methotrexate
Rosowsky,Forsch,Moran,Freisheim
, p. 227 - 234 (2007/10/02)
The previously undescribed 2-desamino and 2-desamino-2-methyl analogues of aminopterin (AMT) and methotrexate (MTX) were synthesized from 2-amino-5-(chloromethyl)pyrazine-3- carbonitrile. The AMT analogues were obtained via a three-step sequence consistin