Introduction：Basic information about CAS 139-25-3|1,1'-Methylenebis(4-isocyanato-3-methylbenzene), including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
| Common Name | 1,1'-Methylenebis(4-isocyanato-3-methylbenzene) |
|---|
| CAS Number | 139-25-3 | Molecular Weight | 278.305 |
|---|
| Density | 1.1±0.1 g/cm3 | Boiling Point | 410.4±45.0 °C at 760 mmHg |
|---|
| Molecular Formula | C17H14N2O2 | Melting Point | / |
|---|
| MSDS | / | Flash Point | 169.5±34.1 °C |
|---|
Names
| Name | 1-isocyanato-4-[(4-isocyanato-3-methylphenyl)methyl]-2-methylbenzene |
|---|
| Synonym | More Synonyms |
|---|
Chemical & Physical Properties
| Density | 1.1±0.1 g/cm3 |
|---|
| Boiling Point | 410.4±45.0 °C at 760 mmHg |
|---|
| Molecular Formula | C17H14N2O2 |
|---|
| Molecular Weight | 278.305 |
|---|
| Flash Point | 169.5±34.1 °C |
|---|
| Exact Mass | 278.105530 |
|---|
| PSA | 58.86000 |
|---|
| LogP | 5.86 |
|---|
| Vapour Pressure | 0.0±1.0 mmHg at 25°C |
|---|
| Index of Refraction | 1.576 |
|---|
| InChIKey | DTZHXCBUWSTOPO-UHFFFAOYSA-N |
|---|
| SMILES | Cc1cc(Cc2ccc(N=C=O)c(C)c2)ccc1N=C=O |
|---|
Toxicological Information
CHEMICAL IDENTIFICATION - RTECS NUMBER :
- NQ8820000
- CHEMICAL NAME :
- Isocyanic acid, ester with di-o-toluenemethane
- CAS REGISTRY NUMBER :
- 139-25-3
- BEILSTEIN REFERENCE NO. :
- 2150383
- LAST UPDATED :
- 199701
- DATA ITEMS CITED :
- 2
- MOLECULAR FORMULA :
- C17-H14-N2-O2
- MOLECULAR WEIGHT :
- 278.33
- WISWESSER LINE NOTATION :
- OCNR B1 D1R C1 DNCO
HEALTH HAZARD DATAACUTE TOXICITY DATA - TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Intravenous
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 320 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#00946
|
Safety Information
Customs
| HS Code | 2929109000 |
|---|
| Summary | 2929109000. other isocyanates. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
|---|
Synonyms
| Benzene, 1,1'-methylenebis[4-isocyanato-3-methyl- |
| Isocyanic acid,ester with di-o-toluenemethane |
| Bis(4-isocyanato-3-methylphenyl)methane |
| 4,4'-Diisocyanato-3,3'-dimethyldiphenylmethane |
| 1,1'-Methylenebis(4-isocyanato-3-methylbenzene) |
| Nacconate 310 |
| MFCD00019910 |
| 3,3'-dimethyl-4,4'-diisocyanatodiphenylmethane |
| 3,3'-dimethyldiphenylmethane-4,4'-diisocyanate |
