Basic information
- CAS
730-40-5- Standard SMILES
Nc1ccc(N=Nc2ccc([N+](=O)[O-])cc2)cc1- InChIKey
UNBOSJFEZZJZLR-UHFFFAOYSA-N- Molecular formula
- C12H10N4O2
- Average molar mass
- 242.23 g/mol
- Monoisotopic mass
- 242.08037556
Overview
4-(4-nitrophenylazo)aniline is azobenzene substituted at the phenyl 4-positions by an amino and a nitro group. It has a role as a dye and an allergen. It is a member of azobenzenes and a primary arylamine. It is functionally related to an azobenzene.
Names & identifiers
- Preferred name
- Disperse orange 3
- IUPAC
- 4-[(4-nitrophenyl)diazenyl]aniline
- English name
- DISPERSE ORANGE 3
- Molecular formula
- C12H10N4O2
- Molecular weight
- 242.23
Names & synonyms
Show more names
Database identifiers
- CAS
730-40-5- PubChem CID
- 12896
- DTXSID
DTXSID7061061- ChEMBL
CHEMBL5287885- ChEBI
CHEBI:75648- UNII
- B7J3O076OT
- EC Number
- 211-984-8
- Nikkaji
- J2.364.317K、J2.364.318I、J6.955H
Properties
Computed structural properties
- XLogP
- 3.2
- Topological polar surface area
- 96.6 Ų
- Hydrogen bond donors
- 1
- Hydrogen bond acceptors
- 5
- Rotatable bonds
- 2
- Heavy atoms
- 18
- Formal charge
- 0
- Complexity
- 300
Experimental & physicochemical properties
Physicochemical properties
- Melting point
- 200 °C · ~200 °C (dec.)(lit.)
- Boiling point
- 385.06 °C · 385.06°C (rough estimate)
- Density
- 1.2532 · 1.2532 (rough estimate)
- refractive index
- 1.6081 · 1.6081 (estimate)
- storage temp.
- Refrigerator
- solubility
- Chloroform (Very Slightly, Heated, Sonicated), DMSO (Slightly), Methanol (Slightly)
- Colour Index
- 11005 · 11005
- pka
- 2.78 · 2.78±0.10(Predicted)
- form
- Powder
- color
- Red to dark brown
- Water Solubility
- 290.7 ug/L · 290.7ug/L(25 ºC)
- λmax
- 443 nm · 443 nm
- BRN
- 1842907 · 1842907
- Henry's Law Constant
- 3.5 · 3.5×104 mol/(m3Pa) at 25℃, Duchowicz et al. (2020)
- Major Application
- cleaning productscosmeticsenvironmentalfood and beveragespersonal care
- Cosmetics Ingredients Functions
- HAIR DYEING
- InChI
- 1S/C12H10N4O2/c13-9-1-3-10(4-2-9)14-15-11-5-7-12(8-6-11)16(17)18/h1-8H,13H2/b15-14+
- InChIKey
- UNBOSJFEZZJZLR-CCEZHUSRSA-N
- SMILES
- Nc1ccc(cc1)\N=N\c2ccc(cc2)[N+]([O-])=O
- CAS DataBase Reference
- 730 · 730-40-5(CAS DataBase Reference)
- EWG's Food Scores
- 1 · 1-4
- FDA UNII
- 7 J3O076OT · B7J3O076OT
- EPA Substance Registry System
- 3 · C.I. Disperse Orange 3 (730-40-5)
- UNSPSC Code
- 85151701 · 85151701
- NACRES
- 24 · NA.24
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 315 · H315-H317-H319-H335
- Precautionary statements
- 280 · P280-P302+P352-P305+P351+P338
- target organs
- Respiratory system
- PPE
- 95 · dust mask type N95 (US), Eyeshields, Faceshields, Gloves
- Hazard Codes
- Xi
- Risk Statements
- 36 · 36/37/38-43
- Safety Statements
- 26 · 26-36/37
- WGK Germany
- 3 · 3
- TSCA
- TSCA listed
- HS Code
- 32041100 · 32041100
- Storage Class
- 11 · 11 - Combustible Solids
- Hazard Classifications
- 2 Skin · Eye Irrit. 2Skin Irrit. 2Skin Sens. 1STOT SE 3
Safety & regulation
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 3.6% (2 of 56) of reports.
Warning
H315 (76.8%): Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P272, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P333+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 56 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Chemical: Benzenamine, 4-[(4-nitrophenyl)azo]-
Benzenamine, 4-(4-nitrophenyl)azo-: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Safety data
- PPE
- dust mask type N95 (US), Eyeshields, Faceshields, Gloves
- wgk
- 3
- tsca
- TSCA listed
- hs_code
- 32041100
- risk_code
- 36/37/38-43
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xi
- safety_code
- 26-36/37
- Storage Class
- 11 - Combustible Solids
- target organs
- Respiratory system
- Hazard statements
- H315-H317-H319-H335
- Hazard Classifications
- Eye Irrit. 2Skin Irrit. 2Skin Sens. 1STOT SE 3
- Precautionary statements
- P280-P302+P352-P305+P351+P338
Chemistry & industry
Pharmacology
Uses & manufacturing
Applications
DescriptionDisperse orange 3 is an azo dye which can induce contact dermatitis in workers in the textile industry. Patch tests are frequently positive (about 30%) in hairdressers with a hand dermatitis. It is probably an indicator of contact sensitization to PPD, but disperse orange 3 can also be found in so me semipermanent hair dyes.
UsesDisperse orange 3 is used as a dye in acetate, nylon, silk, wool, and cotton; stocking dye.
UsesDisperse Orange 3 may be used as a test material for investigating its degradation by the white rot fungusPleurotus ostreatus and the products obtained upon degradation are determined using UV-visible spectrophotometric and high-performance liquid chromatographic techniques.
General DescriptionDisperse Orange 3 (DO3) is a monoazo dye, which contains 90% dye content plus dispersing agents and surfactants. It has two aromatic rings with an amino group on one of the rings and the other is substituted with a nitro group. It shows an absorption peak majoring at 415 nm.
Preparation methods
Preparation4-Nitrobenzenamine diazo, with aniline base armour sulfonic acid coupling, and sodium hydroxide solution to boil, then a sulfonic acid hydrolysis off base.
Upstream & downstream products
Upstream raw materials
Downstream products
Suppliers60 total
Additional notes
DefinitionChEBI: Azobenzene substituted at the phenyl 4-positions by an amino and a nitro group.
Related reactions
Compound notes
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