Basic information
- Standard SMILES
CCNc1ccc2ccccc2c1N=Nc1ccc(N=Nc2ccccc2)cc1- InChIKey
VKWNTWQXVLKCSG-UHFFFAOYSA-N- Molecular formula
- C24H21N5
- Average molar mass
- 379.5 g/mol
- Monoisotopic mass
- 379.17969567
Overview
Sudan Red 7B is a member of azobenzenes.
Names & identifiers
- Preferred name
- Sudan Red 7B
- IUPAC
- N-ethyl-1-[(4-phenyldiazenylphenyl)diazenyl]naphthalen-2-amine
- English name
- Sudan Red 7B
- Molecular formula
- C24H21N5
- Molecular weight
- 379.46
Names & synonyms
Sudan Red 7B6368-72-5Solvent Red 19Fat red 7BTypogen CarmineCeres Red 7BHexatype Carmine BOrganol Bordeaux BC.I. Solvent Red 19Sudanrot 7BLacquer Red V3BSudan 7B
Show more names
OIL VIOLETsudan7bCI 26050FETTROT 7Bceresred7bsudanrot7bCI NO 26050lacquerredv3b
Solvent Red 019Special Blue X 2137C.I. 26050Fat red bluish2-Naphthalenamine, N-ethyl-1-[[4-(phenylazo)phenyl]azo]-SUDANRED7BCerven rozpoustedlova 19C.I. 26,050
Database identifiers
- CAS
6368-72-5- PubChem CID
- 61396
- DTXSID
DTXSID4064266- ChEBI
CHEBI:82537- UNII
- 8QUH39Y06P
- EC Number
- 228-862-5
- Nikkaji
- J3.700.558D、J3.735.296I、J34.105C
Properties
Computed structural properties
- XLogP
- 7.1
- Topological polar surface area
- 61.5 Ų
- Hydrogen bond donors
- 1
- Hydrogen bond acceptors
- 5
- Rotatable bonds
- 6
- Heavy atoms
- 29
- Formal charge
- 0
- Complexity
- 533
Physicochemical properties
- Melting point
- 130 °C · 130 °C (dec.)(lit.)
- Boiling point
- 497.32 °C · 497.32°C (rough estimate)
- Density
- 1.349 · 1.3490 (rough estimate)
- refractive index
- 1.63 · 1.6300 (estimate)
- storage temp.
- Amber Vial, Refrigerator, Under inert atmosphere
- solubility
- Chloroform, DMSO, Methanol
- pka
- 3.58 · 3.58±0.40(Predicted)
- Colour Index
- 26050 · 26050
- form
- Powder
- color
- Maroon
- λmax
- 367 · 367-377 nm in toluene (2nd)528-538 nm in toluene (1st)
- ε(extinction coefficient)
- 14230 at · ≥14230 at 367-377nm in toluene≥24660 at 528-538nm in toluene
- BRN
- 3534323 · 3534323
- Stability
- Light Sensitive
- Major Application
- cleaning productscosmeticsfood and beveragespersonal care
- InChI
- 1S/C24H21N5/c1-2-25-23-17-12-18-8-6-7-11-22(18)24(23)29-28-21-15-13-20(14-16-21)27-26-19-9-4-3-5-10-19/h3-17,25H,2H2,1H3/b27-26+,29-28+
- InChIKey
- VKWNTWQXVLKCSG-ZDXBJJIESA-N
- SMILES
- CCNc1ccc2ccccc2c1\N=N\c3ccc(cc3)\N=N\c4ccccc4
- CAS DataBase Reference
- 6368 · 6368-72-5
- FDA UNII
- 8 QUH39Y06P · 8QUH39Y06P
- IARC
- 3 · 3 (Vol. 8, Sup 7) 1987
- EPA Substance Registry System
- 2 · 2-Naphthalenamine, N-ethyl-1-[2-[4-(2-phenyldiazenyl)phenyl]diazenyl]- (6368-72-5)
- UNSPSC Code
- 85151701 · 85151701
- NACRES
- 47 · NA.47
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 302 · H302
- Precautionary statements
- 264 · P264-P270-P301+P312-P330-P501
- PPE
- 95 · dust mask type N95 (US), Eyeshields, Gloves
- Hazard Codes
- Xn
- Risk Statements
- 22 · 22
- Safety Statements
- 37 · 37/39-26
- WGK Germany
- 3 · 3
- RTECS
- 2850000 · QM2850000
- TSCA
- TSCA listed
- HS Code
- 32041900 · 32041900
- Storage Class
- 11 · 11 - Combustible Solids
Safety & regulation
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 55.3% (47 of 85) of all reports.
Warning
H302 (44.7%): Harmful if swallowed [Warning Acute toxicity, oral]
P264, P270, P301+P317, P330, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 85 reports by companies from 2 notifications to the ECHA C&L Inventory.
Warning
Hazard information
Regulatory Information
Chemical: 2-Naphthalenamine, N-ethyl-1-[[4-(phenylazo)phenyl]azo]-
Hazard Traits - Bioaccumulation; Environmental Persistence
Regulation (EC) No 178/2002 (amended)
Other Safety InformationIMAP assessments - Dyes that could release selected carcinogenic amines (listed on AICS): Human health tier II assessment
Hazard Classes and Categories
Acute Tox. 4 (44.7%)
Carcinogenicity - category 2
Toxicology
Carcinogen Classification
Sudan Red 7B
Group 3: Not classifiable as to its carcinogenicity to humans
Volume 8: (1975) Some Aromatic Azo Compounds
1987
1987
Safety data
- PPE
- dust mask type N95 (US), Eyeshields, Gloves
- wgk
- 3
- tsca
- TSCA listed
- rtecs
- QM2850000
- hs_code
- 32041900
- risk_code
- 22
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xn
- safety_code
- 37/39-26
- Storage Class
- 11 - Combustible Solids
- Hazard statements
- H302
- Precautionary statements
- P264-P270-P301+P312-P330-P501
Chemistry & industry
Uses & manufacturing
General Manufacturing Information2-Naphthalenamine, N-ethyl-1-[2-[4-(2-phenyldiazenyl)phenyl]diazenyl]-: ACTIVE
Applications
UsesSudan Red 7B is a fat soluble dye. It has been used to study the effects of emulsifying agents on disposition of lipid soluble drugs included in fat emulsion. Dyes and metabolites, Environmental Testing.
Preparation methods
Preparation4-(Phenyldiazenyl)benzenamine diazotization, and N-ethylnaphthalen-2-amine coupling.
Upstream & downstream products
Upstream raw materials
Suppliers50 total
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Additional notes
DefinitionChEBI: Sudan Red 7B is a member of azobenzenes. It is effectively used to stain lipids and is used to indicate the presence of suberin in cell walls.
Related reactions
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