4,4'-DIAMINO-3,3'-DIMETHYLDIPHENYLMETHANE
Synonym(s):4,4′-Diamino-3,3′-dimethyldiphenylmethane;4,4′-Methylene-di(o-toluidine)
- CAS NO.：838-88-0
- Empirical Formula: C15H18N2
- Molecular Weight: 226.32
- MDL number: MFCD00126963
- EINECS: 212-658-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:22:33
What is 4,4'-DIAMINO-3,3'-DIMETHYLDIPHENYLMETHANE?
Chemical properties
White powder. Soluble in ethanol and hot water.
The Uses of 4,4'-DIAMINO-3,3'-DIMETHYLDIPHENYLMETHANE
4,4'-Diamino-3,3'-dimethyldiphenylmethane can be used for preparation polyimide and epoxy resin material.
The Uses of 4,4'-DIAMINO-3,3'-DIMETHYLDIPHENYLMETHANE
4,4′-Methylene-bis(2-methylaniline) has been used as a reference standard for the determination of 4,4′-methylene-bis(2-methylaniline) in plastic multilayer food packaging materials by liquid chromatography (LC)-Orbitrap-full scan-high resolution mass spectrometry (HRMS).
It may be used as a reference standard for the analysis of 4,4′-methylene-bis(2-methylaniline) in dyes, cosmetics, finger paints and inks for pens and tattoos by LC-MS.
Definition
ChEBI: 4,4'-Methylene bis(2-methylaniline) is a diarylmethane.
General Description
4,4′-Methylene-bis(2-methylaniline) belongs to the primary aromatic amines (PAAs) family of compounds which are toxic in nature and are probable human carcinogens.
Safety Profile
Confirmed carcinogen with experimental carcinogenic data. Moderately toxic by ingestion. An eye irritant. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx.
Properties of 4,4'-DIAMINO-3,3'-DIMETHYLDIPHENYLMETHANE
| Melting point: | 155-157 °C |
| Boiling point: | 357.94°C (rough estimate) |
| Density | 0.9543 (rough estimate) |
| vapor pressure | 1.8hPa at 205.5℃ |
| refractive index | 1.5000 (estimate) |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| Water Solubility | Insoluble in water |
| solubility | Chloroform (Slightly), Methanol (Slightly) |
| pka | 5.18±0.25(Predicted) |
| form | neat |
| color | White to Light yellow to Light orange |
| BRN | 398069 |
| CAS DataBase Reference | 838-88-0(CAS DataBase Reference) |
| IARC | 2B (Vol. 4, Sup 7) 1987 |
| EPA Substance Registry System | 4,4'-Methylenebis(2-methylaniline) (838-88-0) |
Safety information for 4,4'-DIAMINO-3,3'-DIMETHYLDIPHENYLMETHANE
| Signal word | Danger |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H317:Sensitisation, Skin H350:Carcinogenicity H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P202:Do not handle until all safety precautions have been read and understood. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. P308+P313:IF exposed or concerned: Get medical advice/attention. |
Computed Descriptors for 4,4'-DIAMINO-3,3'-DIMETHYLDIPHENYLMETHANE
| InChIKey | WECDUOXQLAIPQW-UHFFFAOYSA-N |
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