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6832-88-8

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6832-88-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6832-88-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,8,3 and 2 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 6832-88:
(6*6)+(5*8)+(4*3)+(3*2)+(2*8)+(1*8)=118
118 % 10 = 8
So 6832-88-8 is a valid CAS Registry Number.

6832-88-8Relevant articles and documents

Electrophilic nitration of electron-rich acetophenones

Malecki, Natacha,Carato, Pascal,Houssin, Raymond,Cotelle, Philippe,Henichart, Jean-Pierre

, p. 1601 - 1606 (2007/10/03)

It is demonstrated that electron-rich disubstituted acetophenones react according to various electrophilic nitration conditions that generally lead to ipso substitution accompanying the conventional reaction. The hydroxy substituent does not seem prone to

Dynamic Behavior of Photoexcited Solutions of 4-Nitroveratrole Containing OH(1-) or Amines

Eijk, Alexander M. J. van,Huizer, A. Herbert,Varma, Cyril A. G. O.,Marquet, Jorge

, p. 88 - 95 (2007/10/02)

Kinetics and mechanism of the photoinduced reactions of 4-nitroveratrole (NV) with OH(1-) and a number of aliphatic amines have been studied by laser kinetic spectroscopy and by measurement of transient changes in electrical conductivity.In the case of OH(1-) only reactions with NV in its lowest triplet state (T0) are observed and these lead to substitution of the OCH3 group at atom C(2) of the aromatic molecule and to formation of a number of transient ?-complexes, which return to NV.In the case of the amines both excited singlet state and triplet state reactionsare observed.The singlet state reactions with methylamine and with n-hexylamine lead to substitution of the OCH3 group at atom C(2).Although piperidine quenches the excited singlet states involved, this does not lead to substitution at C(2).The triplet state reactions with the amines start with a discrete electron-transfer reaction in which the radical anion (E) of NV is formed.Subsequent reaction of E with the radical cation of the amine leads to substitution at C(1) and to a number of ?-complexes, which return to NV.

Reaction de l'amino-2 nitro-5 phenol et du diamino-2,5 phenol avec quelques acides et esters α-cetoniques. Synthese d'amino-7 benzoxazines-1,4 ones-2

Bris, Marie-Therese Le

, p. 551 - 555 (2007/10/02)

Our objective was the preparation of fluorescent dyes in the 1,4-benzoxazinone series; accordingly, reactions of α-ketoacids and esters with 2-amino-5-nitrophenol and 2,5-diaminophenol were investigated.With 2-amino-5-nitrophenol, ethyl pyruvate yields th

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