Completing data — usually done within a minute
Basic information
- Standard SMILES
O=C1C=CC(=O)c2c(O)ccc(O)c21- InChIKey
RQNVIKXOOKXAJQ-UHFFFAOYSA-N- Molecular formula
- C10H6O4
- Average molar mass
- 190.154 g/mol
- Monoisotopic mass
- 190.02660867
Names & identifiers
- Preferred name
- Naphthazarin
- IUPAC
- 5,8-Dihydroxynaphthalene-1,4-dione
- English name
- 5,8-Dihydroxy-1,4-naphthoquinone
- Molecular formula
- C10H6O4
- Molecular weight
- 190.15
Names & synonyms
NAPHTHAZARIN5,8-Dihydroxynaphthoquinone5,8-Dihydroxynaphthalene-1,4-dioneNaphthazaroneNaphthazarineNAPHTHAZALINEMordant Black 37Naphthazarin (6CI)5,8-Dihydroxy-1,4-nNaphthazarin, 10 mM in DMSO
Database identifiers
- CAS
475-38-7- PubChem CID
- 10141
- DTXSID
DTXSID00197161- ChEMBL
CHEMBL274056- ChEBI
CHEBI:28849- UNII
- S9IX5I5C0K
- EC Number
- 207-495-4
- Nikkaji
- J12.362E、J939.863E
Properties
Physicochemical properties
- Melting point
- 220 · 220-230 °C(lit.)
- Boiling point
- 285.64 °C · 285.64°C (rough estimate)
- Density
- 1.3366 · 1.3366 (rough estimate)
- refractive index
- 1.528 · 1.5280 (estimate)
- storage temp.
- Sealed in dry,Room Temperature
- form
- powder to crystaline
- pka
- 6.98 · 6.98±0.20(Predicted)
- color
- Dark red to Brown
- Water Solubility
- Soluble in water (5520 mg/L 25.).
- BRN
- 880561 · 880561
- Cosmetics Ingredients Functions
- COLORANTHAIR CONDITIONING
- InChI
- InChI=1S/C10H6O4/c11-5-1-2-6(12)10-8(14)4-3-7(13)9(5)10/h1-4,11-12H
- InChIKey
- RQNVIKXOOKXAJQ-UHFFFAOYSA-N
- SMILES
- C1(=O)C2=C(C(O)=CC=C2O)C(=O)C=C1
- CAS DataBase Reference
- 475 · 475-38-7(CAS DataBase Reference)
- EWG's Food Scores
- 1 · 1
- FDA UNII
- 9 IX5I5C0K · S9IX5I5C0K
- NIST Chemistry Reference
- 1 · 1,4-Naphthalenedione, 5,8-dihydroxy-(475-38-7)
- UNSPSC Code
- 12352103 · 12352103
- NACRES
- 23 · NA.23
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 302 · H302+H312+H332-H315-H319-H335
- Precautionary statements
- 280 a-P304+P340-P305+P351+P338-P405-P501a-P261-P264-P270-P271-P280-P301+P312+P330-P302+P352+P312+P362+P364-P304+P340+P312-P305+P351+P338+P337+P313-P501 · P280a-P304+P340-P305+P351+P338-P405-P501a-P261-P264-P270-P271-P280-P301+P312+P330-P302+P352+P312+P362+P364-P304+P340+P312-P305+P351+P338+P337+P313-P501
- PPE
- 95 · Eyeshields, Gloves, type N95 (US)
- Hazard Codes
- Xi
- Risk Statements
- 36 · 36/37/38
- Safety Statements
- 22 · 22-24/25-37/39-26
- WGK Germany
- 3 · 3
- RTECS
- 7970000 · QL7970000
- HS Code
- 2914409000 · 2914409000
- Storage Class
- 11 · 11 - Combustible Solids
Safety & regulation
Safety data
- PPE
- Eyeshields, Gloves, type N95 (US)
- wgk
- 3
- rtecs
- QL7970000
- hs_code
- 2914409000
- risk_code
- 36/37/38
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xi
- safety_code
- 22-24/25-37/39-26
- Storage Class
- 11 - Combustible Solids
- Hazard statements
- H302+H312+H332-H315-H319-H335
- Precautionary statements
- P280a-P304+P340-P305+P351+P338-P405-P501a-P261-P264-P270-P271-P280-P301+P312+P330-P302+P352+P312+P362+P364-P304+P340+P312-P305+P351+P338+P337+P313-P501
Chemistry & industry
Preparation methods
Preparation1,8-Dinitronaphthalene and 1,5-Dinitronaphthalene mixture or both alone and one of sulfur 40% fuming sulfuric ACID reaction, the product (5, 8 – dihydroxy – naphthoquinone) into Sulfurous acidhydrogen salt.
Upstream & downstream products
Upstream raw materials
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Additional notes
DefinitionChEBI: A naphthoquinone that is 1,4-naphthoquinone in which the hydrogens at positions 5 and 8 are replaced by hydroxy groups.
Related reactions
2 records
Linked notes
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