55540

4-(Hydroxymercuri)benzoic acid sodium salt

≥95.0% (Hg)

• Synonym(s): p-Chloromercuribenzoate, p-Hydroxymercuribenzoic acid sodium salt, PCMB, Sodium 4-(hydroxymercurio)benzoate
• Empirical Formula (Hill Notation): C₇H₅HgNaO₃
• CAS Number: 138-85-2
• Molecular Weight: 360.69
• UNSPSC Code: 12352103
• NACRES: NA.25
• PubChem Substance ID: 57651536
• EC Number: 205-340-5
• Beilstein/REAXYS Number: 6118796
• MDL number: MFCD00002527
• Assay: ≥95.0% (Hg)

Properties

• Quality Segment: 100
• assay: ≥95.0% (Hg)
• mp: ≥300 °C
• SMILES string: [Na+].O[Hg]c1ccc(cc1)C([O-])=O
• InChI: 1S/C7H5O2.Hg.Na.H2O/c8-7(9)6-4-2-1-3-5-6;;;/h2-5H,(H,8,9);;;1H2/q;2*+1;/p-2
• InChI key: CBELQCYFTSHKPJ-UHFFFAOYSA-L

Description

Application

4-(Hydroxymercuri)benzoic acid is an organic mercurial compound that reacts via mercury-sulfur affinity with sulfhydryl groups in peptides, proteins and other molecules. PCMB may be used for the determination of sulfhydryl groups in proteins according to Boyer, by atomic absorption[1], and stopped-flow measurements, G. Castronuovo-Lepore et al.[2]. It may be used for specific applications such as probing the active site of an enzyme such as cytochrome C oxidase. 4-(Hydroxymercuri)benzoic acid appeared mistakenly as p-chloromercuriobenzoate [PCMB] in earlier literature.

Disclaimer

For U.S. Customers: Contains mercury; Do not place in trash - dispose according to local, state, or federal laws.

Safety Information

• pictograms: GHS06,GHS08,GHS09
• signalword: Danger
• hcodes: H300 + H310 + H330,H373,H410
• pcodes: P262 - P264 - P273 - P280 - P302 + P352 + P310 - P304 + P340 + P310
• Hazard Classifications: Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2
• Storage Class: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• wgk: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges