20567-38-8

Basic information

• Product Name: 4,5-DIMETHOXY-2-NITROCINNAMIC ACID
• Synonyms: RARECHEM BK HW 0176;TIMTEC-BB SBB006555;LABOTEST-BB LT00453683;3-(4,5-DIMETHOXY-2-NITROPHENYL)ACRYLIC ACID;4,5-DIMETHOXY-2-NITROCINNAMIC ACID;3,4-DIMETHOXY-6-NITROCINNAMIC ACID;4,5-Dimethoxy-2-nitrocinnamic acid 98%;3-(3,4-Dimethoxy-6-nitrophenyl)propenoic acid
• CAS NO: 20567-38-8
• Molecular Formula: C₁₁H₁₁NO₆
• Molecular Weight: 253.21
• Product Categories: Aromatic Cinnamic Acids, Esters and Derivatives
• Mol File: 20567-38-8.mol
• Article Data: 2

Chemical Properties

• Melting Point: 293 °C (dec.)(lit.)
• Boiling Point: 483℃
• Flash Point: 246℃
• Appearance: yellow to green powder
• Density: 1.369
• Vapor Pressure: 3.9E-10mmHg at 25°C
• Refractive Index: 1.5300 (estimate)
• Storage Temp.: Sealed in dry,Room Temperature
• PKA: 4.16±0.15(Predicted)
• CAS DataBase Reference: 4,5-DIMETHOXY-2-NITROCINNAMIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: 4,5-DIMETHOXY-2-NITROCINNAMIC ACID(20567-38-8)
• EPA Substance Registry System: 4,5-DIMETHOXY-2-NITROCINNAMIC ACID(20567-38-8)

Safety Data

• Statements: 36/37/38
• Safety Statements: 24/25-60-37-26
• WGK Germany: 3
• Hazardous Substances Data: 20567-38-8(Hazardous Substances Data)

Usage

InChI:InChI=1/C11H11NO6/c1-17-9-5-7(3-4-11(13)14)8(12(15)16)6-10(9)18-2/h3-6H,1-2H3,(H,13,14)/p-1/b4-3+

Upstream product

• 141-82-2 malonic acid 
• 20357-25-9 6-nitroveratraldehyde 
• 14737-89-4 3,4-dimethoxy-trans-cinnamic acid 

Downstream Products

• 855162-94-6 C₁₂H₁₃NO₆ 
• 402932-81-4 (E)-3-(4,5-dihydroxy-2-nitrophenyl)propenoic acid 
• 118509-96-9 (E)-3-(4,5-dimethoxy-2-nitro-phenyl)-acrylic acid methyl ester 
• 91133-47-0 6,7-dimethoxy-3,4-dihydroquinolin-2(1H)-one 

Relevant articles and documents

A Simple and straightforward synthesis of cinnamic acids and ylidene malononitriles via knoevenagel condensation employing dabco as catalyst

An efficient method for the synthesis of substituted cinnamic acid and ylidene malanonitriles is developed via Knoevenagel condensation of aromatic aldehydes with malonic acid and malononitrile in the presence of catalytic amounts of DABCO. This method has many advantages, such as mild reaction conditions, excellent yields, short reaction times and no furthur purification required.