15931-91-6

Basic information

• Product Name: 2,5-di-(p-chloroanilino)-3,6-dihydrobenzene dicarboxylic acid dimethyl ester
• Synonyms: 2,5-di-(p-chloroanilino)-3,6-dihydrobenzene dicarboxylic acid dimethyl ester
• CAS NO: 15931-91-6
• Molecular Weight: 445.302
• Mol File: 15931-91-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2,5-di-(p-chloroanilino)-3,6-dihydrobenzene dicarboxylic acid dimethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: 2,5-di-(p-chloroanilino)-3,6-dihydrobenzene dicarboxylic acid dimethyl ester(15931-91-6)
• EPA Substance Registry System: 2,5-di-(p-chloroanilino)-3,6-dihydrobenzene dicarboxylic acid dimethyl ester(15931-91-6)

Safety Data

• Hazardous Substances Data: 15931-91-6(Hazardous Substances Data)

Upstream product

• 6289-46-9 dimethyl 2,5-dioxocyclohexane-1,4-dicarboxylate 
• 106-47-8 4-chloro-aniline 
• 15926-98-4 2.5-Bis--terephthalsaeure-dimethylester 
• 5870-37-1 2,5-Dihydroxybenzol-1,4-dicarbonsaeure-dimethylester 
• 15926-99-5 2,5-Bis--terephthalsaeure-dimethylester 

Downstream Products

• 41680-76-6 2,5-di(4-chloro-anilino)terephthalic acid 

Relevant articles and documents

Preparation method for quinacridone and derivatives of quinacridone

The invention relates to the field of synthesis of organic pigments and discloses a preparation method for quinacridone and derivatives of the quinacridone. The preparation method comprises the steps that dimethyl succinate generates sodium dimethyl succinylsuccinate (DMSS) through cyclic condensation under an effect of sodium methoxide, and then being acidized into DMSS; condensation reaction occurs between the DMSS and aniline or substituted aniline, an intermediate product generated during condensation is directly oxidized and dehydrogenated by sodium 3-nitrobenzene sulfonate to obtain an oxidative product; and finally coarse products of the quinacridone or the derivatives of the quinacridone are prepared from the oxidative product in a ring-closing mode under an effect of polyphosphoric acid, and finally finished products of the quinacridone or the derivatives of the quinacridone are obtained through pigmentation treatment.