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3,4-(Methylenedioxy)aniline

Also known as: Benzo[d][1,3]dioxol-5-amine, 5-Amino-1,3-benzodioxole, 1,3-Benzodioxol-5-amine, 3,4-Methylenedioxyaniline, 4-Amino-1,2-methylenedioxybenzene, 1-Amino-3,4-methylenedioxybenzene, Aniline, 3,4-(methylenedioxy)-, EINECS 238-161-6, MFCD00005832

3,4-(Methylenedioxy)aniline (CAS 14268-66-7) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C7H7NO2 and a molecular weight of 137.136 g/mol. Key properties include a melting point of 39-41 °C(lit.), a boiling point of 267.9±0.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 142.8±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
14268-66-7
Jingsj CID
J-1493411-3
Molecular Formula
C7H7NO2
Molecular Weight
137.136 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point39-41 °C(lit.)
Boiling Point267.9±0.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point142.8±0.0 °C
Exact Mass137.047684
PSA44.48000
LogP0.78
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.631
Additional Propertyslightly soluble

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2932999099
Summary2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 3,4-(Methylenedioxy)aniline?

The CAS number of 3,4-(Methylenedioxy)aniline is 14268-66-7.

What are the molecular formula and molecular weight of 3,4-(Methylenedioxy)aniline?

3,4-(Methylenedioxy)aniline has molecular formula C7H7NO2 and molecular weight 137.136 g/mol.

Is 3,4-(Methylenedioxy)aniline hazardous?

3,4-(Methylenedioxy)aniline has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 3,4-(Methylenedioxy)aniline?

For 3,4-(Methylenedioxy)aniline, Upstream Products: 1,2-(Methylenedioxy)-4-nitrobenzene, 5-Bromo-1,3-benzodioxole, 1,3-Benzodioxole; Downstream Products: 5H-[1,3]Dioxolo[4,5-f]indole-6,7-dione, N-Ethyl-3,4-(methylenedioxy)aniline, 2-(1,3-benzodioxol-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "3,4-(Methylenedioxy)aniline (CAS 14268-66-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1493411-3 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.