Basic information
- Name:
1,2,4-Trimethoxybenzene
- CAS No.:
135-77-3
- Molecular Structure:

- Formula:
- C9H12O3
- Molecular Weight:
- 168.1898
- Synonyms:
- Benzene,1,2,4-trimethoxy-;TMB 124;EPA Pesticide Chemical Code 040515;1,2,4-Trimethoxy Benzene;
- EINECS:
- 205-219-7
- Density:
- 1.041 g/cm3
- Boiling Point:
- 247 °C at 760 mmHg
- Flash Point:
- 77.9 °C
- Appearance:
- clear light yellow to yellow-brown liquid
- Hazard Symbols:
Xi- Safety Description:
- 23-24/25 Details
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Chemistry
The molecular structure of 1,2,4-Trimethoxybenzene (CAS NO.135-77-3):

IUPAC Name: 1,2,4-Trimethoxybenzene
Molecular Weight: 168.18978 g/mol
Molecular Formula: C9H12O3
Density: 1.041 g/cm3
Boiling Point: 247 °C at 760 mmHg
Flash Point: 77.9 °C
Index of Refraction: 1.485
Molar Refractivity: 46.28 cm3
Molar Volume: 161.4 cm3
Surface Tension: 29.8 dyne/cm
Enthalpy of Vaporization: 46.45 kJ/mol
Vapour Pressure: 0.0413 mmHg at 25 °C
XLogP3: 2.1
H-Bond Acceptor: 3
Rotatable Bond Count: 3
Exact Mass: 168.078644
MonoIsotopic Mass: 168.078644
Topological Polar Surface Area: 27.7
Heavy Atom Count: 12
Canonical SMILES: COC1=CC(=C(C=C1)OC)OC
InChI: InChI=1S/C9H12O3/c1-10-7-4-5-8(11-2)9(6-7)12-3/h4-6H,1-3H3
InChIKey: AGIQIOSHSMJYJP-UHFFFAOYSA-N
EINECS: 205-219-7
Product Categories: Aromatic Hydrocarbons (substituted) & Derivatives; Benzene derivates; Anisoles, Alkyloxy Compounds & Phenylacetates
Uses
1,2,4-Trimethoxybenzene (CAS NO.135-77-3) is used as pharmaceutical intermediates.
Safety Profile
Hazard Codes:
Xi
Safety Statements: 23-24/25
S23:Do not breathe vapour.
S24/25:Avoid contact with skin and eyes.
WGK Germany: 3
RTECS: DC2770000
Hazard Note: Irritant
HS Code: 29093090
Specification
1,2,4-Trimethoxybenzene (CAS NO.135-77-3) is also named as AI3-20797 ; EPA Pesticide Chemical Code 040515 ; Benzene, 1,2,4-trimethoxy- ; 1,2,4-Trimethoxy Benzene . 1,2,4-Trimethoxybenzene (CAS NO.135-77-3) is clear light yellow to yellow-brown liquid.

