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3-Hydroxy-2-naphthoic acid

Product Name
3-Hydroxy-2-naphthoic acid
CAS No.
92-70-6
Chemical Name
3-Hydroxy-2-naphthoic acid
Synonyms
BON ACID;BON;BONA;2-HYDROXY-3-NAPHTHOIC ACID;3-hydroxy-2-naphthoicaci;developer8;naphtholbon;developerbon;cideveloper20;Developer BON
CBNumber
CB4334794
Molecular Formula
C11H8O3
Formula Weight
188.18
MOL File
92-70-6.mol
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3-Hydroxy-2-naphthoic acid Property

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
Water Solubility 
PRACTICALLY INSOLUBLE
λmax
395nm(H2O (pH 3.5))(lit.)
Merck 
14,4835
BRN 
744100
CAS DataBase Reference
92-70-6(CAS DataBase Reference)
NIST Chemistry Reference
2-Naphthalenecarboxylic acid, 3-hydroxy-(92-70-6)
EPA Substance Registry System
3-Hydroxy-2-naphthoic acid (92-70-6)
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Safety

Hazard Codes 
Xn,Xi
Risk Statements 
22-36-36/37/38
Safety Statements 
26-37/39
WGK Germany 
1
RTECS 
QL1755000
TSCA 
Yes
HS Code 
29182910
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.
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H302Harmful if swallowed

H318Causes serious eye damage

H335May cause respiratory irritation

H412Harmful to aquatic life with long lasting effects

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
H46007
Product name
3-Hydroxy-2-naphthoic acid
Purity
98%
Packaging
100g
Price
$63.3
Updated
2024/03/01
Sigma-Aldrich
Product number
CB_94071429
Product name
BON-CT human cell line
Purity
94071429, IHW Number: 9290
Packaging
94071429-DNA-5UG
Price
$390
Updated
2024/03/01
Sigma-Aldrich
Product number
CB_94071429
Product name
BON-CT human cell line
Purity
94071429, IHW Number: 9290
Packaging
1VIAL
Price
$546
Updated
2024/03/01
Sigma-Aldrich
Product number
1148238
Product name
Color Related Compound 005
Purity
United States Pharmacopeia (USP) Reference Standard
Packaging
20mg
Price
$210
Updated
2024/03/01
TCI Chemical
Product number
H0281
Product name
3-Hydroxy-2-naphthoic Acid
Purity
>98.0%(HPLC)(T)
Packaging
25g
Price
$18
Updated
2024/03/01
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3-Hydroxy-2-naphthoic acid Chemical Properties,Usage,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.]

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3-Hydroxy-2-naphthoic acid Suppliers

Tianmen Hengchang Chemical Co., Ltd
Tel
027-59322316 15172518801
Fax
027-59322316
Email
1208480077@qq.com
Country
China
ProdList
9887
Advantage
58
Hubei Changxinsheng Chemical Co., Ltd
Tel
18971203904
Email
1601302530@qq.com
Country
China
ProdList
499
Advantage
58
Wuhan Qiaofeng Chemical Technology Co., Ltd.
Tel
18271818137
Email
2814999308@qq.com
Country
China
ProdList
298
Advantage
58
Hubei Junrui Biotechnology Co., Ltd
Tel
13971166412
Email
2653908223@qq.com
Country
China
ProdList
4372
Advantage
58
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
94657
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
TAIYUAN RHF CO.,LTD.
Tel
+86 351 7031519
Fax
+86 351 7031519
Email
sales@RHFChem.com
Country
China
ProdList
2338
Advantage
56
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
Beijing HwrkChemical Technology Co., Ltd
Tel
010-89508211 18501085097
Fax
010-89508210
Email
sales.bj@hwrkchemical.com
Country
China
ProdList
8415
Advantage
55
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View Lastest Price from 3-Hydroxy-2-naphthoic acid manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
3-Hydroxy-2-naphthoic acid 92-70-6
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-11-04
HebeiShuoshengImportandExportco.,Ltd
Product
3-Hydroxy-2-naphthoic acid 92-70-6
Price
US $6.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
2000KG/Month
Release date
2024-08-08
Hebei Longbang Technology Co., Ltd
Product
3-Hydroxy-2-naphthoic acid 92-70-6
Price
US $5.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
20TONS
Release date
2024-05-11

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