3-Hydroxy-2-naphthoic acid
- CAS No.
- 92-70-6
- Chemical Name:
- 3-Hydroxy-2-naphthoic acid
- Synonyms
- BON ACID;BON;2-HYDROXY-3-NAPHTHOIC ACID;BONA;3-hydroxy-2-naphthoicaci;3-HYDROXY-2-NAPHTHALENECARBOXYLIC ACID;developer8;naphtholbon;developerbon;cideveloper20
- CBNumber:
- CB4334794
- Molecular Formula:
- C11H8O3
- Molecular Weight:
- 188.18
- MDL Number:
- MFCD00004103
- MOL File:
- 92-70-6.mol
- MSDS File:
- SDS
| Melting point | 218-221 °C(lit.) |
|---|---|
| Boiling point | 283.17°C (rough estimate) |
| Density | 1.43 g/cm3 (23℃) |
| refractive index | 1.7160 (estimate) |
| Flash point | >150°C |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | 0.072g/l practically insoluble |
| pka | 3.02±0.30(Predicted) |
| form | Fine Crystalline Powder |
| color | Yellow to beige-brown |
| biological source | human blood |
| Water Solubility | PRACTICALLY INSOLUBLE |
| λmax | 395nm(H2O (pH 3.5))(lit.) |
| Merck | 14,4835 |
| BRN | 744100 |
| Henry's Law Constant | 7.0×103 mol/(m3Pa) at 25℃, HSDB (2015) |
| InChI | 1S/C11H8O3/c12-10-6-8-4-2-1-3-7(8)5-9(10)11(13)14/h1-6,12H,(H,13,14) |
| InChIKey | ALKYHXVLJMQRLQ-UHFFFAOYSA-N |
| SMILES | OC(=O)c1cc2ccccc2cc1O |
| CAS DataBase Reference | 92-70-6(CAS DataBase Reference) |
| EWG's Food Scores | 2 |
| NCI Dictionary of Cancer Terms | BON |
| FDA UNII | C7S9D784HX |
| NIST Chemistry Reference | 2-Naphthalenecarboxylic acid, 3-hydroxy-(92-70-6) |
| EPA Substance Registry System | 3-Hydroxy-2-naphthoic acid (92-70-6) |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS05,GHS07 |
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|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H302-H318-H335-H412 | |||||||||
| Precautionary statements | P261-P264-P273-P280-P301+P312-P305+P351+P338 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xn,Xi | |||||||||
| Risk Statements | 22-36-36/37/38 | |||||||||
| Safety Statements | 26-37/39 | |||||||||
| WGK Germany | 1 | |||||||||
| RTECS | QL1755000 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29182910 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral Aquatic Chronic 3 Eye Dam. 1 STOT SE 3 |
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| Hazardous Substances Data | 92-70-6(Hazardous Substances Data) | |||||||||
| Toxicity | The acute oral LD50 of 3-Hydroxy-2-naphthoic acid in rats was 823-1040 mg/kg bw. | |||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
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3-Hydroxy-2-naphthoic acid price More Price(66)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | H46007 | 3-Hydroxy-2-naphthoic acid 98% | 92-70-6 | 100g | $69.6 | 2026-04-30 | Buy |
| Sigma-Aldrich | CB_94071429 | BON-CT human cell line NOTE: Both the cell line and DNA from the cell line may be available for this product. Please choose | 1 unit | $436 | 2026-04-30 | Buy | |
| Sigma-Aldrich | CB_94071429 | BON-CT human cell line 94071429, IHW Number: 9290 | 1VIAL | $610 | 2026-04-30 | Buy | |
| Sigma-Aldrich | 1148238 | Color Related Compound 005 United States Pharmacopeia (USP) Reference Standard | 92-70-6 | 20mg | $225 | 2026-04-30 | Buy |
| Sigma-Aldrich | CB_94071429 | BON-CT human cell line 94071429, IHW Number: 9290 | 94071429-DNA-5UG | $390 | 2024-03-01 | Buy |
3-Hydroxy-2-naphthoic acid Chemical Properties,Uses,Production
Chemical Properties
yellow to beige-brown fine crystalline powder. 3 -Hydroxy-2-naphthoic acid [92-70-6], BON acid, C11H8O3, Mr 188.17, mp 222℃, forms pale yellow crystals from aqueous ethanol. Alkaline solutions have a green fluorescence. Aqueous ferric chloride produces a blue color, and warming with CHCl3– NaOH results in a green color. Oxidation with alkaline permanganate gives 2-carboxyphenylglyoxylic acid and then phthalic acid. Dry distillation produces dibenzoxanthone. Bromination gives the 4,7-dibromo derivative; nitration, the 4-nitro derivative; and sulfonation with oleum, the 5,7-disulfonic acid derivative.
Uses
3-Hydroxy-2-naphthoic acid is mainly used as intermediate for the production of dyes and pigments. Further uses are as intermediate for insecticides and pharmaceuticals (ECB, 2000).
Uses
2-hydroxy-3-naphthoic acid (BON) is coupled with diazo compounds and their calcium salts are bright red bleed resistance pigments. The somewhat higher cost manganese salt shows better exterior durability than the calcium or barium salts. The BON red pigments are characterized by an extremely high degree of color stability, resistance to acids and alkalies and are nontoxic.
Definition
ChEBI: 3-Hydroxy-2-naphthoate is a naphthoic acid.
Preparation
3 -Hydroxy-2-naphthoic acid is invariably by the Kolbe – Schmitt reaction of carbon dioxide with the dried sodium salt of 2-naphthol at 220 – 260℃. Many improvements in both process and equipment have been developed. The main problems are removal of the 50 % unreacted 2-naphthol and avoidance of a tarry byproduct. Yields of 80 % based on the amount of 2-naphthol consumed are possible despite the low conversion.
Hazard
Irritant.
Purification Methods
Crystallise it from water or acetic acid. The S-benzyisothiuronium salt has m 216-217o (from EtOH). It forms many metal complex salts. [Beilstein 10 H 333, 10 III 1084.]
3-Hydroxy-2-naphthoic acid Preparation Products And Raw materials
Raw materials
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Preparation Products
1of3
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Tianmen Hengchang Chemical Co., Ltd | 027-59322316 15172518801 | 1208480077@qq.com | China | 9485 | 58 |
| Wuhan Qiaofeng Chemical Technology Co., Ltd. | 18271818137 | 2814999308@qq.com | China | 299 | 58 |
| Hubei Junrui Biotechnology Co., Ltd | 13971166412 | 2653908223@qq.com | China | 4948 | 58 |
| Dao Kui Chemical (Shanghai) Co. LTD | 15995509766 | 296549925@qq.com | China | 131 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TAIYUAN RHF CO.,LTD. | +86 351 7031519 | sales@RHFChem.com | China | 2334 | 56 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Beijing HwrkChemical Technology Co., Ltd | 89508211 18501085097 | sales.bj@hwrkchemical.com | China | 9407 | 55 |
View Lastest Price from 3-Hydroxy-2-naphthoic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-09-07 | 3-Hydroxy-2-naphthoic acid
92-70-6
|
1kg | 99%min | 20tons | HANGZHOU HAILAN CHEMICAL CO.,LTD. | ||
 |
2026-05-28 | 3-Hydroxy-2-Naphthoic Acid
92-70-6
|
$2.00-5.00 | 1KG | 99% | 10000kg | Hebei Chuanghai Biotechnology Co,.LTD | |
 |
2026-03-20 | 3-Hydroxy-2-naphthoic acid
92-70-6
|
$10.00 | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd |
-
- 3-Hydroxy-2-naphthoic acid
92-70-6
- $0.00
- 99%min
- HANGZHOU HAILAN CHEMICAL CO.,LTD.
-
- 3-Hydroxy-2-Naphthoic Acid
92-70-6
- $2.00-5.00
- 99%
- Hebei Chuanghai Biotechnology Co,.LTD
-
- 3-Hydroxy-2-naphthoic acid
92-70-6
- $10.00
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
