N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-[[2-methoxy-5-methyl-4-[(methylamino)sulphonyl]phenyl]azo]naphthalene-2-carboxamide
Basic information
- CAS
51920-12-8- Standard SMILES
CNS(=O)(=O)c1cc(OC)c(N=Nc2c(O)c(C(=O)Nc3ccc4[nH]c(=O)[nH]c4c3)cc3ccccc23)cc1C- InChIKey
YKGGTUUWVUHZIL-UHFFFAOYSA-N- Molecular formula
- C27H24N6O6S
- Average molar mass
- 560.6 g/mol
- Monoisotopic mass
- 560.14780368
Names & identifiers
- Preferred name
- N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-[[2-methoxy-5-methyl-4-[(methylamino)sulphonyl]phenyl]azo]naphthalene-2-carboxamide
- IUPAC
- 3-hydroxy-4-[[2-methoxy-5-methyl-4-(methylsulfamoyl)phenyl]diazenyl]-N-(2-oxo-1,3-dihydrobenzimidazol-5-yl)naphthalene-2-carboxamide
- English name
- Pigment Red HF4C
- Molecular formula
- C27H24N6O6S
- Molecular weight
- 560.58
Names & synonyms
N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-[[2-methoxy-5-methyl-4-[(methylamino)sulphonyl]phenyl]azo]naphthalene-2-carboxamideDTXSID20686862-Naphthalenecarboxamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-((2-methoxy-5-methyl-4-((methylamino)sulfonyl)phenyl)azo)-2-Naphthalenecarboxamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-[[2-methoxy-5-methyl-4-[(methylamino)sulfonyl]phenyl]azo]-N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-((2-methoxy-5-methyl-4-((methylamino)sulphonyl)phenyl)azo)naphthalene-2-carboxamideRefChem:823863DTXCID90411042-Naphthalenecarboxamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-2-methoxy-5-methyl-4-(methylamino)sulfonylphenylazo-257-515-051920-12-83-hydroxy-4-[[2-methoxy-5-methyl-4-(methylsulfamoyl)phenyl]diazenyl]-N-(2-oxo-1,3-dihydrobenzimidazol-5-yl)naphthalene-2-carboxamideEINECS 257-515-0
Show more names
pigment red 185P-red 185pigment red hf4cPermanent Carmine HF-4CPhenmetrazine Impurity 7YKGGTUUWVUHZIL-ULIFNZDWSA-NN-(2,3-DIHYDRO-2-OXO-1H-BENZIMIDAZOL-5-YL)-3-HYDROXY-4-2-METHOXY-5-METHYL-4-(METHYLAMINO)SULPHONYLPHENYLAZONAPHTHALENE-2-CARBOXAMIDE3-Dihydro-2-oxo-1H-benziMidazol-5-yl)-3-hydroxy-4-[[2-Methoxy-5-Methyl-4-[(MethylaMino)sulphonyl]phenyl]azo]naphthalene-2-carboxaMide
2-Naphthalenecarboxamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-(2-(2-methoxy-5-methyl-4-((methylamino)sulfonyl)phenyl)diazenyl)-2-Naphthalenecarboxamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-[2-[2-methoxy-5-methyl-4-[(methylamino)sulfonyl]phenyl]diazenyl]-EC 257-515-0SCHEMBL305451SCHEMBL305452orb2565507SCHEMBL13396911SCHEMBL29548694
Database identifiers
- CAS
51920-12-8- PubChem CID
- 104012
- DTXSID
DTXSID2068686- EC Number
- 257-515-0
- Nikkaji
- J294.946F
Properties
Computed structural properties
- XLogP
- 3.9
- Topological polar surface area
- 179 Ų
- Hydrogen bond donors
- 5
- Hydrogen bond acceptors
- 9
- Rotatable bonds
- 7
- Heavy atoms
- 40
- Formal charge
- 0
- Complexity
- 1,070
Experimental & physicochemical properties
Physical DescriptionDry Powder
Physicochemical properties
- Melting point
- 335 · 335-345 ºC
- Density
- 1.3 · 1.3-1.4
- pka
- 10.63 · 10.63±0.50(Predicted)
- Water Solubility
- 3.4 μg/L · 3.4μg/L at 26℃
- LogP
- 0.8 at · 0.8 at 25℃
- EPA Substance Registry System
- 2 · 2-Naphthalenecarboxamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-[[2-methoxy-5-methyl-4-[(methylamino)sulfonyl]phenyl]azo]- (51920-12-8)
- TSCA
- TSCA listed
- REACH Registrations
- Active
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 100% (137 of 137) of all reports.
Not Classified
Aggregated GHS information provided per 137 reports by companies from 2 notifications to the ECHA C&L Inventory.
Hazard information
Regulatory Information
Chemical: 2-Naphthalenecarboxamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-[[2-methoxy-5-methyl-4-[(methylamino)sulfonyl]phenyl]azo]-
2-Naphthalenecarboxamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-[2-[2-methoxy-5-methyl-4-[(methylamino)sulfonyl]phenyl]diazenyl]- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 2-Naphthalenecarboxamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-[2-[2-methoxy-5-methyl-4-[(methylamino)sulfonyl]phenyl]diazenyl]- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
REACH registered substance: N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-[[2-methoxy-5-methyl-4-[(methylamino)sulphonyl]phenyl]azo]naphthalene-2-carboxamide (EC: 257-515-0)
2-Naphthalenecarboxamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-2-methoxy-5-methyl-4-(methylamino)sulfonylphenylazo-: Does not have an individual approval but may be used under an appropriate group standard
Other Safety InformationIMAP assessments - 2-Naphthalenecarboxamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-[[2-methoxy-5-methyl-4-[(methylamino)sulfonyl]phenyl]azo]-: Human health tier I assessment
Hazard Classes and CategoriesNot Classified
Safety data
- tsca
- TSCA listed
- REACH Registrations
- Active
Chemistry & industry
Uses & manufacturing
U.S. Production2023: <50,000 lb
Industry UsesPigment
General Manufacturing Information
Miscellaneous Manufacturing
2-Naphthalenecarboxamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-[2-[2-methoxy-5-methyl-4-[(methylamino)sulfonyl]phenyl]diazenyl]-: ACTIVE
Applications
UsesPigment Red 185 is an organic pigment used in artist’s paints throughout the 20th and 21st centuries.
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Related reactions
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Compound notes
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