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Merck

06914

Thiophene

analytical standard

Synonym(s):

Thiofuran, Thiole

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About This Item

Empirical Formula (Hill Notation):
C4H4S
CAS Number:
Molecular Weight:
84.14
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
EC Number:
203-729-4
Beilstein/REAXYS Number:
103222
MDL number:

Product Name

Thiophene, analytical standard

InChI key

YTPLMLYBLZKORZ-UHFFFAOYSA-N

InChI

1S/C4H4S/c1-2-4-5-3-1/h1-4H

SMILES string

c1ccsc1

grade

analytical standard

vapor density

2.9 (vs air)

vapor pressure

40 mmHg ( 12.5 °C)

assay

≥99.5% (GC)

autoignition temp.

743 °F

shelf life

limited shelf life, expiry date on the label

expl. lim.

12.5 %

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

impurities

~0.2% benzene

refractive index

n20/D 1.529 (lit.)
n20/D 1.529

bp

84 °C (lit.)

mp

−38 °C (lit.)

density

1.051 g/mL at 25 °C (lit.)

application(s)

environmental

format

neat

Quality Level

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Application

Thiophene may be used as an analytical reference standard for the quantification of the analyte in diesel oil and crude oil using two-dimensional gas chromatography with sulfur chemiluminescence detection.

General description

Thiophene belongs to the class of polycyclic aromatic sulfur heterocycles, which are carcinogenic compounds found in crude oil. Thiopenes are widely used as building blocks in many agrochemicals, pharmaceuticals, and material science.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3 - Carc. 1A - Eye Irrit. 2 - Flam. Liq. 2 - Muta. 1B

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

15.8 °F

flash_point_c

-9 °C

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


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Determination of sulfur-containing compounds in diesel oils by comprehensive two-dimensional gas chromatography with a sulfur chemiluminescence detector
Hua R, et al.
Journal of Chromatography A, 1019(1-2), 101-109 (2003)
Analysis of sulfur?containing compounds in crude oils by comprehensive two?dimensional gas chromatography with sulfur chemiluminescence detection
Hua R, et al.
Journal of Separation Science, 27(9), 691-698 (2004)
Monitoring the chemical crosslinking of propylene polymers through rheology
Romani F, et al.
Polymer, 43(4), 1115-1131 (2002)
Isabella Salzer et al.
Pflugers Archiv : European journal of physiology, 466(12), 2289-2303 (2014-03-29)
The slow cholinergic transmission in autonomic ganglia is known to be mediated by an inhibition of Kv7 channels via M1 muscarinic acetylcholine receptors. However, in the present experiments using primary cultures of rat superior cervical ganglion neurons, the extent of
Joachim Morrens et al.
Neuron, 106(1), 142-153 (2020-02-07)
Dopamine neurons mediate the association of conditioned stimuli (CS) with reward (unconditioned stimuli, US) by signaling the discrepancy between predicted and actual reward during the US. Some theoretical models suggest that learning is also influenced by the salience or associability

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