81-83-4
1,8-Naphthalimide
CAS: 81-83-4
Molecular Formula: C12H7NO2
81-83-4 - Names and Identifiers
| Name | 1,8-Naphthalimide |
| Synonyms | 1,8-N 1,8-Naphthalimide 1,8-NAPHTHALIC ACID AMIDE Naphthalene-1,8-dicarbimide 1H-Benz[de]isoquinoline-1,3 1,8-Naphthalenediformylimine naphthalene-1,8-dicarboximide naphthalene-1,8-dicarboxamide Naphthalin-1,8-dicarbonsureimid benzo[de]isoquinoline-1,3-dione 2H-Benzo[de]isoquinoline-1,3-dione 1H-benzo[de]isoquinoline-1,3(2H)-dione |
| CAS | 81-83-4 |
| EINECS | 201-379-7 |
| InChI | InChI=1/C12H10N2O2/c13-11(15)8-5-1-3-7-4-2-6-9(10(7)8)12(14)16/h1-6H,(H2,13,15)(H2,14,16) |
81-83-4 - Physico-chemical Properties
| Molecular Formula | C12H7NO2 |
| Molar Mass | 197.19 |
| Density | 1.2292 (rough estimate) |
| Melting Point | 299-300°C(lit.) |
| Boling Point | 334.29°C (rough estimate) |
| Flash Point | 303.2°C |
| Water Solubility | Insoluble in water. |
| Vapor Presure | 0Pa at 20℃ |
| Appearance | White solid |
| Color | White to Yellow to Orange |
| BRN | 153150 |
| pKa | 9.48±0.20(Predicted) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | 1.4500 (estimate) |
| MDL | MFCD00006920 |
| Physical and Chemical Properties | Melting Point: 299-300 ℃ |
| Use | It is an important raw material for the synthesis of perylene dye, pigment, reduction of BG ash and fluorescent whitening agent |
81-83-4 - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R36 - Irritating to the eyes |
| Safety Description | S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| WGK Germany | 1 |
| TSCA | Yes |
| HS Code | 29251995 |
81-83-4 - Reference Information
| LogP | 1.4 at 24℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | is used as an intermediate for dyes and pesticides. It is used in the dye industry for the production of anthracene, anthracene and gray BG, brilliant orange KR, anthracycline orange IRK, etc. It is an important raw material for the synthesis of perylene dyes and pigments, the reduction of BG ash and fluorescent whitening agents, etc. |
| production method | is obtained by amination of 1, 8-naphthalenedicarboxylic acid. 290kg of 1, 8-naphthalenedicarboxylic acid, 20% of ammonia water 414kg and water 414kg were added to the reaction pot and heated to 100-110 ° C. Under a pressure of 0.2-0.25MPa. Heat preservation 5H. Then, it was cooled to below 40 ° C., filtered and washed to obtain 242kg of 1, 8-naphthalimide. |
Last Update：2024-04-10 22:29:15
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View History
81-83-4
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