2,3-二羟基苯甲酸

Name: 2,3-二羟基苯甲酸
Brand: 济南圣和化工有限公司

CAS 303-38-8C7H6O4MW 154.12

2,3-二羟基苯甲酸，CAS 登记号 303-38-8，由济南圣和化工有限公司现货供应，可提供纯度按批次COA提供(不公开发布) 的规格，下游主要用于有机化学品。支持样品与小批量试用，批量价格请联系我们获取，验收以批次 COA 为准。

规格参数

CAS号303-38-8

分子式C7H6O4

分子量154.12

熔点204

LogP1.2

纯度按批次COA提供(不公开发布)

包装按订单/批次确认(不公开发布)

应用领域有机化学品

类别有机化学品

用途与场景

有机化学品

包装与供货

包装规格按订单/批次确认(不公开发布)

纯度规格按批次COA提供(不公开发布)

储存条件密封、阴凉干燥处保存

供货周期现货/按订单安排

文件与支持

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常见问题

在哪里能查到 2,3-二羟基苯甲酸的 CAS 号？

本页已列出 2,3-二羟基苯甲酸的 CAS 号：303-38-8，可与随货 COA 核对。

可以提供哪些规格和包装？

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2,3-二羟基苯甲酸一般用在什么产品里？

主要涉及有机化学品。

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PubChem 公开数据

Description

2,3-Dihydroxybenzoic acid · CAS 303-38-8 · C7H6O4. UNII 70D5FBB392. Melting Point: 204; Melting Point: 204.00 to 208.00 °C. @ 760.00 mm Hg; Vapor Pressure: 0.0000021 [mmHg].

Identification

CAS Registry Number	303-38-8
PubChem CID	19
Molecular formula	C7H6O4
IUPAC name	2,3-dihydroxybenzoic acid
UNII (FDA)	70D5FBB392

Computed Descriptors

Molecular Weight	154.12
XLogP3	1.2
Hydrogen Bond Donor Count	3
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	1
Exact Mass	154.02660867
Monoisotopic Mass	154.02660867
Topological Polar Surface Area	77.8
Heavy Atom Count	11
Formal Charge	0

Physical & Chemical Properties

Melting Point	204
Melting Point	204.00 to 208.00 °C. @ 760.00 mm Hg
Vapor Pressure	0.0000021 [mmHg]
LogP	1.2
LogP	1.20
Dissociation Constants	2.91 (at 25 °C)
Collision Cross Section	120.9 Å² [M-H]-

Physical description & handling notes

Beige powder; [Aldrich MSDS]
Solid
118.42 Å² [M-H]- [CCS Type: DT; Method: single field calibrated with Agilent tune mix (Agilent)]

Regulatory Status

GHS notification summary	2% (1 / 49)

GHS Hazard Classification

GHS notification summary	2% (1 / 49)
Reported hazard statements	H315 (98%), H319 (98%), H335 (95.9%)

This chemical does not meet GHS hazard criteria for 2% (1 of 49) of reports.

H315 (98%): Causes skin irritation [Warning Skin corrosion/irritation]

Documented Uses

Synthetic Polymer MALDI Matrix Compounds
Organic chemicals that form two or more coordination links with an iron ion. Once coordination has occurred, the complex formed is called a chelate. The iron-binding porphyrin group of hemoglobin is an example of a metal chelate found in biological systems.

Synonyms

2,3-Dihydroxybenzoic acid; 303-38-8; Pyrocatechuic acid; o-Pyrocatechuic acid; 3-Hydroxysalicylic acid; Benzoic acid, 2,3-dihydroxy-; 2-Pyrocatechuic acid; DHBA; Catecholcarboxylic acid; DOBK; 2,3-DIHYDROXY-BENZOIC ACID; 2,3 DHB; 2,3-dihydroxy benzoic acid; CHEBI:18026; 70D5FBB392; NSC-27435

Frequently Asked Questions

What are the CAS number and molecular formula of 2,3-Dihydroxybenzoic acid?

CAS 303-38-8; molecular formula C7H6O4; molecular weight — g/mol.

What other names is 2,3-Dihydroxybenzoic acid known by?

2,3-Dihydroxybenzoic acid, 303-38-8, Pyrocatechuic acid, o-Pyrocatechuic acid, 3-Hydroxysalicylic acid, Benzoic acid, 2,3-dihydroxy-.

Is 2,3-Dihydroxybenzoic acid classified as hazardous?

2% of GHS notifications report no hazard classification (1 of 49).

What are the key physical properties of 2,3-Dihydroxybenzoic acid?

Melting Point: 204; Melting Point: 204.00 to 208.00 °C. @ 760.00 mm Hg; Vapor Pressure: 0.0000021 [mmHg]; LogP: 1.2.

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.

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