Molekula
p-Anisidine
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
p-Anisidine is an aromatic amine with a methoxy substituent, widely used as a dye intermediate, in pharmaceutical synthesis, and as a chemical reagent for analytical applications. It appears as a pinkish to brownish crystalline solid with a characteristic odor. This product has a CAS number of 104-94-9, a molecular formula of 4-(CH3O)C6H4NH2, and a molecular weight of 123.15 g/mol. It should be stored at ambient conditions and handled with care, as it carries a "Danger" signal word. Molekula supplies p-Anisidine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Yellow brown to dark brown solid |
| Water | ≤ 0.50% |
| Purity | ≥ 99.0% |
| P-chloroaniline | ≤ 0.10% |
| Single Unknown Impurity | ≤ 0.50% |
| O-anisidine | ≤ 0.30% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 122 °C |
| Transport Class | 6.1 |
| Packing Group | I |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White solid |
| Odour | Amine-like odor |
| Melting Point | 57.2 °C |
| Boiling Point | 243 °C |
| Water Solubility | 21 g/L at 20 °C |
| Solubility (other solvents) | Soluble in acetone, benzene; very soluble in ether, ethanol |
| Vapour Pressure | 2 Pa at 20 °C |
| Refractive Index | 1.5559 |
| pKa | pKa = 5.36 |
| log P (octanol/water) | 0.95 |
Source: PubChem CID 7732 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 35286333 |
| CAS Number | 104-94-9 |
| IUPAC Name | 4-methoxyaniline |
| EC Number | 203-254-2 |
| Molecular Formula | 4-(CH3O)C6H4NH2 |
| Molecular Weight | 123.15 |
| Exact Mass | 123.0684 |
| SMILES | COC1=CC=C(C=C1)N |
| InChIKey | BHAAPTBBJKJZER-UHFFFAOYSA-N |
| InChI | InChI=1S/C7H9NO/c1-9-7-4-2-6(8)3-5-7/h2-5H,8H2,1H3 |
| PubChem CID | 7732 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29222903 |
| Tariff Code | 2922290090 |
Safety & GHS
-
Toxic
GHS06
-
Serious Health Hazard
GHS08
-
Hazardous to the Environment
GHS09
Hazard statements
- H300 Fatal if swallowed
- H310 Fatal in contact with skin
- H330 Fatal if inhaled
- H350 May cause cancer
- H373 May cause damage to organs through prolonged or repeated exposure
- H400 Very toxic to aquatic life
Precautionary statements
- P202 Do not handle until all safety precautions have been read and understood
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 1-Amino-4-methoxybenzene
- 4-Aminoanisole
- 4-Anisidine
- 4-Methoxyaniline
- 4-Methoxybenzenamine
- 4-Methoxybenzeneamine
- Benzenamine, 4-methoxy-
- p-Aminoanisole
- p-Methoxyaniline
- para-Anisidine
Frequently asked questions
What is p-Anisidine commonly used for?
p-Anisidine is primarily used as an intermediate in the synthesis of dyes, pharmaceuticals, and agrochemicals, as well as in the production of rubber chemicals and antioxidants.
What is the chemical formula and molecular weight of p-Anisidine?
The chemical formula is **4-(CH₃O)C₆H₄NH₂**, and the molecular weight is **123.15 g/mol**.
How should p-Anisidine be stored?
Store p-Anisidine at **ambient temperature** in a cool, dry place, away from incompatible substances and moisture.
What grades of p-Anisidine does Molekula supply?
Molekula supplies **technical-grade p-Anisidine** suitable for industrial applications; purity specifications are available upon request.
Can Molekula supply p-Anisidine in bulk quantities?
Yes, Molekula can supply p-Anisidine in bulk, with quantities and packaging options tailored to your requirements.
What documentation comes with an order of p-Anisidine?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a technical data sheet outlining specifications and handling instructions.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.