27841-33-4

Basic information

• Product Name: 1,2-DIAMINO-4,5-DIMETHOXYBENZENE
• Synonyms: 1,2-DIAMINO-4,5-DIMETHOXYBENZENE;4,5-Dimethoxy-1,2-benzenediamine;4,5-Dimethoxy-1,2-diaminobenzene;4,5-Dimethoxy-1,2-phenylenediamine;4,5-Dimethoxy-o-phenylenediamine;4,5-diMethoxybenzene-1,2-diaMine;1,2-Diamino-4,5-methoxybenzene;2-Amino-4,5-dimethoxyaniline
• CAS NO: 27841-33-4
• Molecular Formula: C₈H₁₂N₂O₂
• Molecular Weight: 168.19
• Product Categories: Aromatic Hydrocarbons (substituted) & Derivatives
• Mol File: 27841-33-4.mol
• Article Data: 36

Chemical Properties

• Melting Point: 134-135℃
• Boiling Point: 329 °C at 760mmHg
• Flash Point: 174.8 °C
• Appearance: /
• Density: 1.184
• Vapor Pressure: 0.000182mmHg at 25°C
• Refractive Index: 1.592
• Storage Temp.: Keep in dark place,Inert atmosphere,Store in freezer, under -20°C
• PKA: 4?+-.0.10(Predicted)
• CAS DataBase Reference: 1,2-DIAMINO-4,5-DIMETHOXYBENZENE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2-DIAMINO-4,5-DIMETHOXYBENZENE(27841-33-4)
• EPA Substance Registry System: 1,2-DIAMINO-4,5-DIMETHOXYBENZENE(27841-33-4)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36/37/39
• Hazardous Substances Data: 27841-33-4(Hazardous Substances Data)

Usage

Uses

1,2-Diamino-4,5-dimethoxybenzene reacts with aldehydes to produce highly fluorescent benzimidazole derivatives. It can be used for the detection of aromatic aldehydes as well as DTAN.

InChI:InChI=1/C8H12N2O2/c1-11-7-3-5(9)6(10)4-8(7)12-2/h3-4H,9-10H2,1-2H3

Upstream product

• 7647-01-0 hydrogenchloride 
• 3395-03-7 4,5-dimethoxy-1,2-dinitrobenzene 
• 64-17-5 ethanol 
• 7732-18-5 water 
• 91-16-7 1,2-dimethoxybenzene 
• 131076-14-7 4,5-dimethoxy-1,2-phenylenediamine hydrochloride salt 
• 102-51-2 4-methoxy-1,2-phenylenediamine 
• 99069-17-7 4-Acetylamino-1,2-dimethoxy-5-nitrobenzene 
• 709-09-1 3,4-dimethoxynitrobenzene 
• 7595-31-5 4-amino-5-nitroveratrol 

Downstream Products

• 51437-32-2 5,6-dimethoxy-2-methyl-1H-benzimidazole 
• 25808-66-6 5,6-dimethoxy-1,3-dihydro-benzoimidazol-2-one 
• 175530-98-0 2-[[N-(Benzyloxycarbonyl)-N-methyl]aminomethyl]-5,6-dimethoxybenzimidazole 
• 286386-50-3 (CH₃O)2C₆H₂N₂C₂₀H₆(C₆H₅)4N₄Zn 
• 1061756-91-9 1,7,8-trimethoxy-4-[2-(3,4,5-trimethoxyphenyl)-Z-vinyl]phenazine 
• 131076-14-7 4,5-dimethoxy-1,2-phenylenediamine hydrochloride salt 
• 1295537-08-4 methyl 2-(5,6-dimethoxy-1H-benzo[d]imidazole-2-carboxamido)benzoate 
• 72721-02-9 5,6-dimethoxybenzimidazole 
• 138657-12-2 1-(5,6-Dimethoxy-1-methyl-1H-benzoimidazol-2-yl)-2,4,6-triphenyl-pyridinium; iodide 
• 136667-99-7 2-Azido-N-[2-(2-azido-2-methyl-propionylamino)-4,5-dimethoxy-phenyl]-2-methyl-propionamide 
• 136668-02-5 1,2-bis(2-amino-2-methylpropanamido)-4,5-dimethoxybenzene 
• 74022-48-3 2-(γ-Dimethylaminopropylthio)-5,6-dimethoxybenzimidazole 
• 50616-92-7 6,7-dimethoxy-3-phenylquinoxalin-2(1H)-one 
• 221064-59-1 N-(2-Chloro-6-methylphenyl)-7,8-dihydroxyimidazo[1,5-a]quinoxalin-4-amine 

Relevant articles and documents

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Two [Ru(phen)2dppz]2+ derivatives (phen=1,10-phenantroline, dppz=dipyrido[3,2-a:2′,3′-c]phenazine) with different functional groups on the dppz ligand [dppz-7,8-(OMe)2 (1), dppz-7,8-(OH)2 (2)] have been synthesi

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Flavinium salts are frequently used in organocatalysis but their application in photoredox catalysis has not been systematically investigated to date. We synthesized a series of 5-ethyl-1,3-dimethylalloxazinium salts with different substituents in the positions 7 and 8 and investigated their application in light-dependent oxidative cycloelimination of cyclobutanes. Detailed mechanistic investigations with a coumarin dimer as a model substrate reveal that the reaction preferentially occurs via the triplet-born radical pair after electron transfer from the substrate to the triplet state of an alloxazinium salt. The very photostable 7,8-dimethoxy derivative is a superior catalyst with a sufficiently high oxidation power (E=2.26 V) allowing the conversion of various cyclobutanes (with Eox up to 2.05 V) in high yields. Even compounds such as all-trans dimethyl 3,4-bis(4-methoxyphenyl)cyclobutane-1,2-dicarboxylate can be converted, whose opening requires a high activation energy due to a missing pre-activation caused by bulky adjacent substituents in cis-position.

Polyhydroxy compound as well as preparation method and application thereof

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