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2233-03-6

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2233-03-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2233-03-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,2,3 and 3 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 2233-03:
(6*2)+(5*2)+(4*3)+(3*3)+(2*0)+(1*3)=46
46 % 10 = 6
So 2233-03-6 is a valid CAS Registry Number.

2233-03-6Relevant articles and documents

Condensed Heterocyclic Lactams. I. Study on the Cyclization Methods Resulting in 4-Aryl-3,4-dihydroquinolin-2(1H)-ones

Hazai, Laszlo,Deak, Gyula,Sohar, Pal,Toth, Gabor,Tamas, Jozsef

, p. 919 - 922 (2007/10/02)

Cyclization reactions with polyphosphoric acid of 3-aryl-3-hydroxypropionanilides carrying a p-nitro- 7a or p-amino substituent 10 on the C-3 phenyl group were investigated.In the case of p-nitro substitution the preferred reaction is, instead of cyclizat

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