NSC 8740
bis(4-nitrophenyl) ether
CAS: 101-63-3
Molecular Formula: C12H8N2O5
NSC 8740 - Names and Identifiers
NSC 8740 - Physico-chemical Properties
| Molecular Formula | C12H8N2O5 |
| Molar Mass | 260.2 |
| Density | 1.3933 (rough estimate) |
| Melting Point | 140-145°C(lit.) |
| Boling Point | 403.46°C (rough estimate) |
| Flash Point | 174°C |
| Vapor Presure | 7.99E-06mmHg at 25°C |
| Appearance | powder to crystal |
| Color | Light yellow to Amber to Dark green |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.6360 (estimate) |
| MDL | MFCD00059182 |
| Physical and Chemical Properties | mutagenicity: mutational microorganism test: Bacteria-Salmonella typhimurium, 50 μg/plate; Used as dye intermediate, it is also used in the production of epoxy resin crosslinking agent and heat resistant polymer material polyimide. |
NSC 8740 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| WGK Germany | 3 |
| RTECS | KN3450000 |
| HS Code | 29309090 |
| Toxicity | mmo-sat 50 mg/plate CRNGDP 6,1811,85 |
NSC 8740 - Nature
Open Data Verified Data
yellow needle-like crystals. The melting point was 142-143 °c. Soluble in hot alcohol, soluble in benzene, acetic acid, ether-soluble and cold ethanol.
Last Update：2024-01-02 23:10:35
NSC 8740 - Preparation Method
Open Data Verified Data
- p-nitrochlorobenzene and p-nitrophenol condensation method.
- p-dinitrobenzene method p-dinitrobenzene, sodium carbonate and dimethyl sulfoxide reaction at 135 ℃, the end of the reaction cooled to room temperature after adding water precipitation light yellow precipitate, after filtration, drying, Recrystallization (with toluene as solvent) the finished product was obtained with a yield of 91%.
- p-nitrochlorobenzene was reacted with sodium hydroxide, isopropanol and p-nitrochlorobenzene at 80 ° C., and the resulting crystals were filtered and washed with water to obtain a product in a yield of 91%.
Last Update：2022-01-01 10:50:55
NSC 8740 - Application
Open Data Verified Data
This product can be prepared by reduction of 4, 4R_diamino diphenyl ether, used for epoxy resin crosslinking agent and heat resistant polymer material polyimide production; Can also be used for the preparation of dye intermediates.
Last Update：2025-08-19 16:24:40
NSC 8740 - Safety
Open Data Verified Data
The packaging is in 50kg cardboard drum.
Last Update：2022-01-01 10:50:55
NSC 8740 - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| production method | 2,6-oil (2,4-and 2,6-dinitrochlorobenzene) is hydrolyzed with sodium hydroxide to obtain 2,4-and 2,6-dinitrophenol sodium, acidified, nitrated with mixed acid, and washed with suction and filtration to obtain the finished product. |
Last Update：2024-04-10 22:29:15
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Featured ProductsSpot supply
Product Name: 4,4'-Dinitrodiphenyl Ether Visit Supplier Webpage Request for quotationCAS: 101-63-3
Tel: +86-18821248368
Email: Int06@meryer.com
Mobile: +86-18821248368
QQ: 495145328
WhatsApp: +86-18821248368
Spot supply
Product Name: 4,4'-Dinitrodiphenyl Ether Request for quotationCAS: 101-63-3
Tel: 400-968-2212
Email: 3623107365@qq.com
Mobile: 18916960931
QQ: 3623107365
Wechat: 18916960931
Spot supply
Product Name: 4,4'-Dinitrodiphenyl Ether Visit Supplier Webpage Request for quotationCAS: 101-63-3
Tel: +86-400-900-4166
Email: product@acmec-e.com
Mobile: +86-18621343501
QQ: 2881950922
Wechat: 18621343501
WhatsApp: +86-18621343501
Spot supply
Product Name: 44'-DINITRODIPHENYL ETHER Visit Supplier Webpage Request for quotationCAS: 101-63-3
Tel: +86 0571-86722205
Email: sales@chinaskyrun.com
Mobile: +8618958170122
QQ: 2531159185
Wechat: chinaskyrun
Product Name: 4,4-Dinitrodiphenyl Oxide Visit Supplier Webpage Request for quotation
CAS: 101-63-3
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
CAS: 101-63-3
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
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