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55540

Sigma-Aldrich

4-(Hydroxymercuri)benzoic acid sodium salt

≥95.0% (Hg)

Synonyme(s) :

p-Chloromercuribenzoate, p-Hydroxymercuribenzoic acid sodium salt, PCMB, Sodium 4-(hydroxymercurio)benzoate

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About This Item

Formule empirique (notation de Hill):
C7H5HgNaO3
Numéro CAS:
138-85-2
Poids moléculaire :
360.69
Numéro Beilstein :
6118796
Numéro CE :
205-340-5
Numéro MDL:
MFCD00002527
Code UNSPSC :
12352103
ID de substance PubChem :
57651536
Nomenclature NACRES :
NA.25

Pureté

≥95.0% (Hg)

Pf

≥300 °C

Chaîne SMILES 

[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

Clé InChI

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, 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.

Pictogrammes

Skull and crossbonesHealth hazardEnvironment
GHS06,GHS08,GHS09

Mention d'avertissement

Danger

Classification des risques

Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2

Code de la classe de stockage

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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