Not soluble in water. Soluble in alcohol and dichloro ethane
55540
4-(Hydroxymercuri)benzoic acid sodium salt
≥95.0% (Hg)
Synonym(s):
p-Chloromercuribenzoate, p-Hydroxymercuribenzoic acid sodium salt, PCMB, Sodium 4-(hydroxymercurio)benzoate
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About This Item
Empirical Formula (Hill Notation):
C7H5HgNaO3
CAS Number:
Molecular Weight:
360.69
Beilstein:
6118796
EC Number:
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.25
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Quality Level
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
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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[1], by atomic absorption[2], and stopped-flow measurements, G. Castronuovo-Lepore et al.[3]. 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.
Signal Word
Danger
Hazard Statements
Precautionary Statements
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 Code
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
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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