Monomethyl
mono-Methyl terephthlate
CAS: 1679-64-7
Molecular Formula: C9H8O4
Monomethyl - Names and Identifiers
| Name | mono-Methyl terephthlate |
| Synonyms | MMT MonomethyL mono-Methyl terephthlate monomethyl terephthalate mono-Methyl terephthalate mono-Methyleterephthalate Mono-Methyl tetraphthalate 4-(methoxycarbonyl)benzoate (4-carboxyphenyl)-aceticaci Hydrogen methyl terephthalate methyl hydrogen terephthalate Terephthalic Acid Monomethyl Ester 4-(Methoxycarbonyl)benzoic acid, Methyl 4-carboxybenzoate |
| CAS | 1679-64-7 |
| EINECS | 216-849-7 |
| InChI | InChI=1/C9H8O4/c1-13-9(12)7-4-2-6(3-5-7)8(10)11/h2-5H,1H3,(H,10,11)/p-1 |
| InChIKey | REIDAMBAPLIATC-UHFFFAOYSA-N |
Monomethyl - Physico-chemical Properties
| Molecular Formula | C9H8O4 |
| Molar Mass | 180.16 |
| Density | 1.1987 (rough estimate) |
| Melting Point | 220-223 °C (lit.) |
| Boling Point | 232.96°C (rough estimate) |
| Flash Point | 136°C |
| Water Solubility | Slightly soluble in water. Also soluble in methanol, benzene and ether. |
| Solubility | chloroform/methanol: soluble50mg/mL, clear, colorless (1:1) |
| Vapor Presure | 6.13E-05mmHg at 25°C |
| Appearance | White to white-like powder |
| Color | White to off-white |
| BRN | 1911082 |
| pKa | 3.77±0.10(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.4209 (estimate) |
| MDL | MFCD00002557 |
| Physical and Chemical Properties | Appearance: White to off-white crystal MP :219-223℃ |
| Use | Used as a pharmaceutical Intermediate |
Monomethyl - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29173980 |
| Hazard Class | IRRITANT |
Monomethyl - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| preparation method | dimethyl terephthalate is used as raw material, hydrolyzed in KOH methanol solution, and then acidified with hydrochloric acid to prepare monomethyl terephthalate, with a product yield of 91.2%. |
| Use | Used as gasoline antiknock agent Used as a pharmaceutical intermediate |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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