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134897-99-7

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134897-99-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134897-99-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,8,9 and 7 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 134897-99:
(8*1)+(7*3)+(6*4)+(5*8)+(4*9)+(3*7)+(2*9)+(1*9)=177
177 % 10 = 7
So 134897-99-7 is a valid CAS Registry Number.

134897-99-7Downstream Products

134897-99-7Relevant articles and documents

CHLOROSULFONATION OF DIARYL AZINES

Cremlyn, Richard J.,Swinbourne, Frederick J.,Graham, Stephen,Cavaleiro, Jose A. S.,Domingues, Fernando J.,Dias, Maribel

, p. 57 - 65 (2007/10/02)

Benzaldehyde- and o-, m-, p-anisaldehyde azines; thiophene-2-carboxaldehyde, and biphenyl-4-carboxaldehyde azines (1-8) reacted with excess chlorosulfonic acid to give the disulphonyl chlorides (1a-8a).These were condensed with amines and hydrazine to give 27 derivatives, (Table I) for biocidal evaluation.The orientation of sulfonation is discussed in relation to the stereoelectronic factors and the spectral data.Attempted chlorosulfonation of furan-2-carboxaldehyde azine (9) gave an impure product which could not be clearly characterized as the morpholidate derivative.

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