3-羟基-2-萘酸

Description

3-Hydroxy-2-naphthoic acid · CAS 92-70-6 · C11H8O3. UNII C7S9D784HX. Melting Point: 222-223 °C; Melting Point: 220 °C; Flash Point: >150 °C c.c..

Identification

CAS Registry Number	92-70-6
PubChem CID	7104
Molecular formula	C11H8O3
IUPAC name	3-hydroxynaphthalene-2-carboxylic acid
UNII (FDA)	C7S9D784HX

Computed Descriptors

Molecular Weight	188.18
XLogP3	2.9
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	1
Exact Mass	188.047344113
Monoisotopic Mass	188.047344113
Topological Polar Surface Area	57.5
Heavy Atom Count	14
Formal Charge	0

Physical & Chemical Properties

Melting Point	222-223 °C
Melting Point	220 °C
Flash Point	>150 °C c.c.
Solubility	0.1 wt% in water at 25 °C
Vapor Pressure	0.00000054 [mmHg]
LogP	log Kow = 3.05
LogP	3.4-3.59
LogP	3.05
Autoignition Temperature	>400 °C
Dissociation Constants	pKa = 2.79

Physical description & handling notes

• Dry Powder; CBI
• Pale yellow solid; [Merck Index] Pale yellow crystalline solid; [MSDSonline]
• YELLOW CRYSTALS.
• Very pale yellow crystals
• Yellow rhombic leaflets
• Lemon to greenish yellow, odorless powder, MP: 218 °C (minimum) /Commercial product, 98% purity/

Regulatory Status

GHS notification summary	0.5% (1 / 209)

GHS Hazard Classification

GHS notification summary	0.5% (1 / 209)
Reported hazard statements	H302 (99.5%), H318 (78.5%), H319 (21.5%), H335 (19.1%), H412 (63.2%), H312, H315, H317

Documented Uses

• Used as a chemical intermediate for dyes and pigments; Has been used as a gallbladder stimulant; [HSDB] Used as intermediate for insecticides and pharmaceuticals; [eChemPortal: SIDSUNEP]
• CHEM INT FOR DYES-EG, PIGMENT REDS 57:1, 52:1, 48:2, 48:1
• CHEM INT FOR P-(NAPHTHYLAMINO)PHENOL-INT FOR SULFUR DYES
• OBTAINED BY ACTION OF CARBON DIOXIDE ON SODIUM SALT OF BETA-NAPHTHOL UNDER PRESSURE @ 280-290 °C
• 2023: 1,000,000 - <8,500,000 lb
• 2022: 1,000,000 - <8,500,000 lb

Synonyms

3-Hydroxy-2-naphthoic acid; 92-70-6; BON acid; Developer BON; BONA; 2-Naphthalenecarboxylic acid, 3-hydroxy-; C.I. Developer 20; 2-Naphthoic acid, 3-hydroxy-; Miketazol Developer ONS; Naphthol B.O.N.; B.o.n. acid; C.I. Developer 8; 3-Naphthol-2-carboxylic acid; Naphthol bon; beta-Oxynaphthoic acid; 3-HYDROXY-2-NAPHTHALENECARBOXYLIC ACID

Frequently Asked Questions

What are the CAS number and molecular formula of 3-Hydroxy-2-naphthoic acid?

CAS 92-70-6; molecular formula C11H8O3; molecular weight — g/mol.

What other names is 3-Hydroxy-2-naphthoic acid known by?

3-Hydroxy-2-naphthoic acid, 92-70-6, BON acid, Developer BON, BONA, 2-Naphthalenecarboxylic acid, 3-hydroxy-.

Is 3-Hydroxy-2-naphthoic acid classified as hazardous?

0.5% of GHS notifications report no hazard classification (1 of 209).

What are the key physical properties of 3-Hydroxy-2-naphthoic acid?

Melting Point: 222-223 °C; Melting Point: 220 °C; Flash Point: >150 °C c.c.; Solubility: 0.1 wt% in water at 25 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.