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
• Beilstein/REAXYS Number: 6118796
• EC Number: 205-340-5
• MDL number: MFCD00002527
• UNSPSC Code: 12352103
• PubChem Substance ID: 57651536
• NACRES: NA.25

Properties

• Quality Level: 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, and stopped-flow measurements, G. Castronuovo-Lepore et al.. 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_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges