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
UNSPSC Code:
12352103
NACRES:
NA.25
PubChem Substance ID:
EC Number:
205-340-5
Beilstein/REAXYS Number:
6118796
MDL number:
Assay:
≥95.0% (Hg)
Pricing and availability is not currently available.
Quality Segment
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
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.
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This Item | ||
|---|---|---|
| description ≥95.0% (Hg) | description analytical standard | description (in 12% nitric acid), TraceCERT®, certified reference material |
| assay ≥95.0% (Hg) | assay ≥85% (TLC) | assay - |
| Quality Level 100 | Quality Level 100 | Quality Level 300 |
| mp ≥300 °C | mp 192-193 °C (dec.) (lit.) | mp - |
Signal Word
Danger
Hazard Codes
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
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 (personal protective equipment)
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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