5623-18-7 Usage
Uses
Different sources of media describe the Uses of 5623-18-7 differently. You can refer to the following data:
1. N10-Methyl Pteroic Acid (Methotrexate EP Impurity D) is a Methotrexate (M260675) impurity D.
2. Methotrexate (M260675) impurity D.
Check Digit Verification of cas no
The CAS Registry Mumber 5623-18-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,6,2 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 5623-18:
(6*5)+(5*6)+(4*2)+(3*3)+(2*1)+(1*8)=87
87 % 10 = 7
So 5623-18-7 is a valid CAS Registry Number.
InChI:InChI=1/C15H14N6O3/c1-21(10-4-2-8(3-5-10)14(23)24)7-9-6-17-12-11(18-9)13(22)20-15(16)19-12/h2-6H,7H2,1H3,(H,23,24)(H3,16,17,19,20,22)