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102840-90-4

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102840-90-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 102840-90-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,8,4 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 102840-90:
(8*1)+(7*0)+(6*2)+(5*8)+(4*4)+(3*0)+(2*9)+(1*0)=94
94 % 10 = 4
So 102840-90-4 is a valid CAS Registry Number.

102840-90-4Upstream product

102840-90-4Downstream Products

102840-90-4Relevant articles and documents

PHOTOCHEMICAL DECOMPOSITION OF SOME 4-(DIALKYLAMINO)AZOBENZENES IN AERATED SOLUTION

Albini, Angelo,Fasani, Elisa,Pietra, Silvio

, p. 257 - 262 (2007/10/02)

Irradiation of benzophenone and 2,2-dimethoxy-2-phenylacetophenone (DMPA) in the presense of some 4-(dialkylamino)azobenzenes (2) causes decomposition of these dyes.The products formed are the N-monoalkyl derivatives (3), the N-acyl derivatives (4), the N-oxides (5), and products arising from cleavage of the Ar-N bond.N-Oxides arise from the reaction of perbenzoic acid, formed in the decomposition of DMPA in aerated solution.The other processes originate from electron transfer to triplet benzophenone or to benzoylperoxy radical (from DMPA), followed by proton transfer and reaction of the α-amino radical with oxygen.The effect of substituents on these reactions is discussed.

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