3-Hydroxy-2-naphthoic acid CAS 92-70-6

Product name: 3-Hydroxy-2-naphthoic acid
CAS：92-70-6
MF：C11H8O3
MW：188.18
EINECS:202-180-8

Product Description

Product name: 3-Hydroxy-2-naphthoic acid

CAS：92-70-6

MF：C11H8O3

MW：188.18

EINECS:202-180-8

Use:

1. Mainly used for manufacturing naphthol AS and other various naphthol intermediates

2. Can be used as an intermediate for high-end organic pigments

Specifications :

3-Hydroxy-2-naphthoic acid Basic information
Product Name:	3-Hydroxy-2-naphthoic acid
CAS:	92-70-6
MF:	C11H8O3
MW:	188.18
EINECS:	202-180-8
Mol File:	92-70-6.mol
3-Hydroxy-2-naphthoic acid Chemical Properties
Melting point	218-221 °C(lit.)
Boiling point	283.17°C (rough estimate)
density	1.43 g/cm3 (23℃)
refractive index	1.7160 (estimate)
Fp	>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	144,835
BRN	744100

公司信息

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.