p-Anisidine
p-Anisidine
CAS: 104-94-9
Molecular Formula: C7H9NO
p-Anisidine - Names and Identifiers
| Name | p-Anisidine |
| Synonyms | p-Anisidine 1,4-Anisidine Anisidine, p- P-Aminoanisole 4-Aminoanisole Para-Anisidine P-AMINOANISOLE 4-methoxyaniline p-Methoxyaniline 1-phenoxymethanamine 4-Methoxybenzeneamine p,p'-Diaminoterphenyl 4-Methoxy-1-aminobenzene 4-methoxyanilinium chloride 4-[4-(4-Aminophenyl)phenyl]aniline 1-Methoxy-4-amino-benzen (p-anisidin) |
| CAS | 104-94-9 |
| EINECS | 203-254-2 |
| InChI | InChI=1/C7H9NO/c1-9-7-4-2-3-6(8)5-7/h2-5H,8H2,1H3 |
p-Anisidine - Physico-chemical Properties
| Molecular Formula | C7H9NO |
| Molar Mass | 123.15 |
| Density | 1.06 |
| Melting Point | 56-59°C(lit.) |
| Boling Point | 240-243°C(lit.) |
| Flash Point | 122 °C |
| Water Solubility | 21 g/L (20 ºC) |
| Solubility | 21g/l |
| Vapor Presure | 0.02 hPa (20 °C) |
| Vapor Density | 4.28 |
| Appearance | crystalline |
| Specific Gravity | 1.07 |
| Color | dark gray to brown |
| Exposure Limit | NIOSH REL: TWA 0.5 mg/m3, IDLH 50 mg/m3; OSHA PEL: TWA 0.5 mg/m3;ACGIH TLV: TWA 0.1 ppm (adopted). |
| Merck | 14,667 |
| BRN | 471556 |
| pKa | 5.34(at 25℃) |
| PH | 7.7 (1g/l, H2O, 20℃) |
| Storage Condition | Store below +30°C. |
| Refractive Index | 1.5559 |
| Physical and Chemical Properties | Crystalline in the form of a melting trait. melting point 57.2 ℃ boiling point 243 ℃ relative density 1.071 refractive index 1.5559 solubility: soluble in ethanol and ether, slightly soluble in water. |
| Use | For use as a dye and pharmaceutical Intermediate |
p-Anisidine - Risk and Safety
| Risk Codes | R45 - May cause cancer R26/27/28 - Very toxic by inhalation, in contact with skin and if swallowed. R33 - Danger of cumulative effects R50 - Very Toxic to aquatic organisms |
| Safety Description | S53 - Avoid exposure - obtain special instructions before use. S28 - After contact with skin, wash immediately with plenty of soap-suds. S36/37 - Wear suitable protective clothing and gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S28A - |
| UN IDs | UN 2811 6.1/PG 3 |
| WGK Germany | 2 |
| RTECS | BZ5450000 |
| FLUKA BRAND F CODES | 8 |
| TSCA | Yes |
| HS Code | 29222200 |
| Hazard Class | 6.1 |
| Packing Group | III |
| Toxicity | Acute oral LD50 for rats 1,400 mg/kg, mice 810 mg/kg, rabbits 2,900 mg/kg (quoted, RTECS, 1985). |
p-Anisidine - Upstream Downstream Industry
| Raw Materials | 1-Chloro-4-nitrobenzene Methyl alcohol Methyl alcohol Sodium hydroxide |
| Downstream Products | 4'-Methoxyacetanilide 4-methoxy-2-nitro-aniline Catonic Gold Yellow X-GL Indomethacin |
p-Anisidine - Nature
Open Data Verified Data
fused crystal. Melting point 57.2 °c (min). The relative density was 1.071. Boiling point 243. C. Refractive index 5559. Soluble in ethanol and ether, slightly soluble in water.
Last Update：2025-06-10 22:55:16
p-Anisidine - Preparation Method
Open Data Verified Data
p-nitrochlorobenzene is used as raw material to carry out methoxylation reaction with methanol and liquid alkali to generate p-nitroanisole, which is then reduced by sodium sulfide. The reaction product is separated and distilled off under reduced pressure to obtain p-Aminobenzoyl ether.
Last Update：2022-01-01 10:51:55
p-Anisidine - Application
Open Data Verified Data
mainly used for the preparation of jujube red base GP, Blue salt VB, phenol AS-RL, phenol AS-SG and other ice dye and the equality of medicine.
Last Update：2025-08-19 16:24:40
p-Anisidine - Safety
Open Data Verified Data
- This product is highly toxic. The maximum allowable concentration in air is 0.5 mg/m3. See anthranilic anisole for methods of protection.
- It is packed in iron drum with a net weight of 200kg per drum. Store in a ventilated and dry place to avoid sun exposure. Hazardous materials shall be stored and transported according to regulations.
Last Update：2025-06-10 22:55:16
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Raw Materials for p-Anisidine
Downstream Products for p-Anisidine