289687-20-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 289687-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,9,6,8 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 289687-20:
(8*2)+(7*8)+(6*9)+(5*6)+(4*8)+(3*7)+(2*2)+(1*0)=213
213 % 10 = 3
So 289687-20-3 is a valid CAS Registry Number.
289687-20-3Relevant articles and documents
Anti-quinazoline compounds
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Page column 13-14, (2010/02/05)
Dihydroquinazoline derivatives of the formula where R3is —(CH2)p—A where p is from 1 to 4 and A is a 5- or 6-membered N-containing heterocyclic ring attached via the N atom or A is —NA′A″ wherein A′ and A″ are the same or different and are each a C1-C4alkyl group or their pharmaceutically acceptable salts possessing anti-cancer activity.
