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4503-80-4

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4503-80-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4503-80-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,5,0 and 3 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 4503-80:
(6*4)+(5*5)+(4*0)+(3*3)+(2*8)+(1*0)=74
74 % 10 = 4
So 4503-80-4 is a valid CAS Registry Number.

4503-80-4Relevant articles and documents

REACTION OF MONOSUBSTITUTED AROMATIC HYDROCARBONS WITH STYRENE

Grushin, A. I.,Grigor'ev, V. V.,Prokof'ev, K. V.,Kozlova, N. M.

, p. 1991 - 1993 (2007/10/02)

1,1-Phenylarylethanes were obtained by the reaction of styrene with some monosubstituted aromatic hydrocarbons in the presence of titanium tetrachloride.It was established that electron-donating substituents have an effect on the yield of the arylalkylation products.

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