Iminostilbene
Also known as: 5H-Dibenz[b,f]azepine, 5H-Dibenzo[b,f]azepine, Dibenz[b,f]azepine, Dibenzazepine, o,o'-Iminostilbene, 2,2'-Iminostilbene, 5-Azadibenzo(a,e)cycloheptatriene, Carbamazepine related compound B, Oxcarbazepine impurity E
Iminostilbene (CAS 256-96-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C14H11N and a molecular weight of 193.244 g/mol. Key properties include a melting point of 197 °C, a boiling point of 349.1±22.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 178.4±17.8 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H411 — Toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 256-96-2
- Jingsj CID
- J-11408-9
- Molecular Formula
- C14H11N
- Molecular Weight
- 193.244 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 197 °C |
|---|---|
| Boiling Point | 349.1±22.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 178.4±17.8 °C |
| Exact Mass | 193.089142 |
| PSA | 12.03000 |
| LogP | 4.11 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.627 |
| Storage Conditions | Refrigerator |
| Additional Property | dioxane: 50 mg/mL, clear |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H411 — Toxic to aquatic life with long lasting effects
Activity & Biological Data
| Additional Information | [1]. Christian P, et al. Crystallization of Carbamazepine in Proximity to Its Precursor Iminostilbene and a Silica Surface. Cryst Growth Des. 2016 May 4;16(5):2771-2778. Epub 2016 Mar 30. |
|---|
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Iminostilbene?
The CAS number of Iminostilbene is 256-96-2.
What are the molecular formula and molecular weight of Iminostilbene?
Iminostilbene has molecular formula C14H11N and molecular weight 193.244 g/mol.
Is Iminostilbene hazardous?
Iminostilbene has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H411 — Toxic to aquatic life with long lasting effects.
What are the upstream and downstream products of Iminostilbene?
For Iminostilbene, Upstream Products: 2-Bromostyrene, 2-Chloroaniline, Carbamazepine; Downstream Products: 9-Methylacridine, Iminodibenzyl, 1-(10,11-Dihydro-5H-dibenzo[b,f]azepin-5-yl)ethanone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Iminostilbene (CAS 256-96-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11408-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.