INT Formazan
Also known as: IODONITROTETRAZOLIUM FORMAZAN, 1-(4-Iodophenyl)-5-(4-nitrophenyl)-3-phenylformazan, 1-(p-iodophenyl)-5-(p-nitrophenyl)-3-phenylformazan, 5-(4-IODOPHENYL)-1-(4-NITROPHENYL)-3-PHENYLFORMAZAN, Iodonitrotetrazolium violet-formazan, iodonitrotetrazoliumviolet-formazane, P-IODONITROTETRAZOLIUM FORMAZAN, INT-formazan, N-(4-iodophenyl)imino-N'-(4-nitroanilino)benzenecarboximidamide, (E)-1-(4-iodophenyl)-2-{[2-(4-nitrophenyl)hydrazinylidene](phenyl)methyl}diazene
INT Formazan (CAS 7781-49-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C19H14IN5O2 and a molecular weight of 471.251 g/mol. Key properties include a melting point of 187ºC (dec.)(lit.), a boiling point of 564.9±60.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 295.5±32.9 °C. It is classified under GHS with signal word Danger and hazard statements H334 — May cause allergy or asthma symptoms if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 7781-49-9
- Jingsj CID
- J-25934-3
- Molecular Formula
- C19H14IN5O2
- Molecular Weight
- 471.251 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 187ºC (dec.)(lit.) |
|---|---|
| Boiling Point | 564.9±60.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 295.5±32.9 °C |
| Exact Mass | 471.019196 |
| PSA | 94.93000 |
| LogP | 7.74 |
| Vapor Pressure | 0.0±1.5 mmHg at 25°C |
| Refractive Index | 1.693 |
GHS Safety & Compliance
- H334 — May cause allergy or asthma symptoms if inhaled
Customs & Trade Information
| HS Code | 2928000090 |
|---|---|
| Summary | 2928000090 other organic derivatives of hydrazine or of hydroxylamine VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of INT Formazan?
The CAS number of INT Formazan is 7781-49-9.
What are the molecular formula and molecular weight of INT Formazan?
INT Formazan has molecular formula C19H14IN5O2 and molecular weight 471.251 g/mol.
Is INT Formazan hazardous?
INT Formazan has GHS signal word Danger and hazard statements H334 — May cause allergy or asthma symptoms if inhaled.
What are the upstream and downstream products of INT Formazan?
For INT Formazan, Upstream Products: Iodonitrotetrazolium chloride.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "INT Formazan (CAS 7781-49-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25934-3 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.