| Identification | More | [Name]
2-HYDROXY-1-NAPHTHOIC ACID | [CAS]
2283-08-1 | [Synonyms]
2-HYDROXY-1-NAPHTHOIC ACID
2-NAPHTHOL-1-CARBOXYLIC ACID
AKOS 223-44
LABOTEST-BB LT00452644
RARECHEM AL BE 0092
1-Naphthalenecarboxylic acid, 2-hydroxy-
1-Naphthoic acid, 2-hydroxy-
2-hydroxy-1-naphthalenecarboxylicaci
2-hydroxy-α-naphthoic acid
Methyl 2-hydroxynaphthalene-1-carboxylate
2-Hydroxy-1-naphthalenecarboxylic acid
2-Hydroxynaphthalene-1-carboxylic acid
Hydroxynaphthalene-1-carboxylic acid
Naphthol-1-carboxylic acid | [EINECS(EC#)]
218-919-2 | [Molecular Formula]
C11H8O3 | [MDL Number]
MFCD00004009 | [Molecular Weight]
188.18 | [MOL File]
2283-08-1.mol |
| Chemical Properties | Back Directory | [Melting point ]
167 °C (dec.) (lit.) | [Boiling point ]
283.17°C (rough estimate) | [density ]
1.2100 (rough estimate) | [refractive index ]
1.6400 (estimate) | [storage temp. ]
Sealed in dry,Room Temperature | [form ]
powder to crystal | [pka]
pK1:3.29;pK2:9.68 (20°C) | [color ]
White to Light red to Green | [BRN ]
975575 | [InChI]
1S/C11H8O3/c12-9-6-5-7-3-1-2-4-8(7)10(9)11(13)14/h1-6,12H,(H,13,14) | [InChIKey]
UPHOPMSGKZNELG-UHFFFAOYSA-N | [SMILES]
OC(=O)c1c(O)ccc2ccccc12 | [CAS DataBase Reference]
2283-08-1(CAS DataBase Reference) | [EPA Substance Registry System]
1-Naphthalenecarboxylic acid, 2-hydroxy- (2283-08-1) |
| Safety Data | Back Directory | [Symbol(GHS) ]
GHS07 | [Signal word ]
Warning | [Hazard statements ]
H315-H319-H335 | [Precautionary statements ]
P261-P264-P271-P280-P302+P352-P305+P351+P338 | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [WGK Germany ]
2
| [TSCA ]
Yes | [HS Code ]
2918199890 | [Storage Class]
11 - Combustible Solids | [Hazard Classifications]
Eye Irrit. 2
Skin Irrit. 2
STOT SE 3 |
| Hazard Information | Back Directory | [Chemical Properties]
2-Hydroxy-1-naphthoic acid [2283-08-1], C11H8O3, Mr 188.17, has a mp of 156 – 157℃ (decomp. to 2-naphthol and CO2). The monosodium salt is unstable in hot aqueous solution. 2- Hydroxy-1-naphthoic acid is decarboxylated by nitrous acid, forming 1-nitroso-2-naphthol, and by diazo salts, forming a 1-azo-2-naphthol. An ethanolic solution of 2-hydroxy-1-naphthoic acid gives a dark blue color with iron(III) chloride. Chlorosulfonic acid at 30℃ gives the 6-sulfonyl chloride derivative. | [Uses]
?2-Hydroxy-1-naphthoic acid is an intermediate of minor importance in the synthesis of azo dyes. | [Production Methods]
Treatment of the dried sodium or potassium salt of 2-naphthol with carbon dioxide at 120 C under pressure gives an 80 % yield of product after careful work-up. Solvents such as toluene, tetralin, or diphenyl oxide are patented alternatives. |
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