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4284-72-4

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4284-72-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4284-72-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,8 and 4 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4284-72:
(6*4)+(5*2)+(4*8)+(3*4)+(2*7)+(1*2)=94
94 % 10 = 4
So 4284-72-4 is a valid CAS Registry Number.

4284-72-4Downstream Products

4284-72-4Relevant articles and documents

Addition of sulfinic acids to methacrylic derivatives

Ivanova,Aleksiev

experimental part, p. 38 - 43 (2011/03/22)

The kinetics of the addition of arenesulfinic acids to methacrylic derivatives were studied. The reactions were found to be second order over a range of concentrations from 0.01 to 0.10 M. For pH values ranging from 4 to 8, the following rate constants were obtained pH the methylacrylate, chloromethylacrylate, and bromomethylacrylate with benzenesulfinic acids (278 K) were investigated: 2.37 (± 0.2).10-4 M-1s -1, 2.60 (± 0.1).10-4 M-1s-1, 3.15 (± 0.3).10-4 M-1s-1. Copyright Taylor & Francis Group, LLC.

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