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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:
110-02-1
Molecular Weight:
84.14
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
329748301
EC Number:
203-729-4
Beilstein/REAXYS Number:
103222
MDL number:
MFCD00005413

Key Documents

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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

100

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Related Categories

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Specified Class I Designated Chemical Substances

prtr

Group 4: Flammable liquids + Type 1 petroleums + Hazardous rank II + Water insoluble liquid

fsl

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

06914-5ML-F:4548173310725 + 06914-BULK-F: + 06914-VAR-F: + 06914-1ML-F:4548173310718

jan

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Certificates of Analysis (COA)

Lot/Batch Number
BCCB9369
BCBT9350

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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)
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)
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
Brian Capozzi et al.
Journal of the American Chemical Society, 136(29), 10486-10492 (2014-07-09)
We have measured the single-molecule conductance of a family of oligothiophenes comprising 1-6 thiophene moieties terminated with methyl-sulfide linkers using the scanning tunneling microscope-based break-junction technique. We find an anomalous behavior: the peak of the conductance histogram distribution does not
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