1-(3,4,5-TRIMETHOXYPHENYL)-2-NITROPROPENE

1-(3,4,5-Trimethoxyphenyl)-2-nitropropene
Other Names:

• 2-Nitro-1-(3,4,5-trimethoxyphenyl)-1-propene

• 1,2,3-Trimethoxy-5-(2-nitro-1-propen-1-yl)benzene

• (E)-1-(3,4,5-Trimethoxyphenyl)-2-nitropropene

• 1,2,3-Trimethoxy-5-[(1E)-2-nitro-1-propen-1-yl]benzene

CAS Number: 5556-76-3
Sum Formula: C₁₂H₁₅NO₅
Molar Mass: 253.25 g/mol
Appearance: Yellow to orange crystalline powder

1-(3,4,5-Trimethoxyphenyl)-2-nitropropene is an aromatic nitroalkene bearing three methoxy groups on the phenyl ring. It is primarily used in organic synthesis, especially in the preparation of substituted phenethylamine derivatives and other complex organic molecules.

Chemical and Physical Properties
Density: Approx. 1.25 g/cm³ (estimated)
Melting Point: 92–96°C
Boiling Point: Decomposes before boiling
Solubility in Water: Practically insoluble
Solubility in Other Solvents: Soluble in ethanol, acetone, chloroform, and other polar organic solvents
Odor: Mild aromatic odor

Applications
Organic Synthesis: Intermediate in the preparation of trimethoxy-substituted aromatic and heterocyclic compounds.
Chemical Research: Used in studies involving nitroalkene reactivity, conjugate addition, and condensation reactions.
Structure–Activity Relationship Studies: Often used as a scaffold in the synthesis of bioactive analogues for research purposes.

Safety
Signal Word: Warning

Hazard Statements:
H302: Harmful if swallowed
H315: Causes skin irritation
H319: Causes serious eye irritation
H335: May cause respiratory irritation
H411: Toxic to aquatic life with long lasting effects

Precautionary Statements – Prevention:
P261: Avoid breathing dust or vapors
P264: Wash hands thoroughly after handling
P273: Avoid release to the environment
P280: Wear protective gloves and eye protection

Precautionary Statements – Response:
P301+P312: IF SWALLOWED: Call a POISON CENTER or doctor if you feel unwell
P302+P352: IF ON SKIN: Wash with plenty of water
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
P337+P313: If eye irritation persists: Get medical advice/attention

Handling and Storage
Storage Conditions: Store in a tightly closed container in a cool, dry, and well-ventilated place. Protect from light, heat, and incompatible substances such as strong oxidizers.
Handling Precautions: Avoid dust formation and prolonged contact. Handle under a fume hood with appropriate personal protective equipment.