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Key Documents

8.08159

Sigma-Aldrich

Thiophenol

Synonym(s):

Phenyl mercaptan, Mercaptobenzene

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About This Item

vapor pressure

2.7 hPa ( 25 °C)

Quality Level

Assay

≥99.0% (GC)

form

liquid

autoignition temp.

450 °C

potency

46.2 mg/kg LD50, oral (rat)
134 mg/kg LD50, skin (rabbit)

reaction suitability

reagent type: reductant

pH

5 (20 °C in H2O, saturated aqueous solution)

bp

168.3 °C/1013 hPa

mp

-15 °C

transition temp

flash point 50 °C

solubility

0.94 g/L

density

1.08 g/cm3 at 20 °C

Related Categories

General description

for synthesis

Application

Thiophenol for synthesis. CAS 108-98-5, pH 5 (H₂O, 20 °C) (saturated aqueous solution).

Storage and Stability

Store below +30°C.

Analysis Note

Assay (GC, area%):≥ 99.0 % (a/a)
Density (d 20 °C/ 4 °C):1.077 - 1.079
Identity (IR):passes test

Signal Word

Danger

Hazard Classifications

Acute Tox. 1 Inhalation - Acute Tox. 2 Dermal - Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Flam. Liq. 3 - Repr. 2 - Skin Irrit. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

122.0 °F - closed cup

Flash Point(C)

50 °C - closed cup


Certificates of Analysis (COA)

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Protocols

Fmoc resin cleavage and deprotection follows the difficult task of detaching the peptide from the resin support and removing all the side-chain protecting groups of the amino acid residues to yield the desired peptide.

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