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8.21095

Sigma-Aldrich

Tetrahydrothiophene

for synthesis

Synonym(s):

Tetrahydrothiophene, Tetramethylene sulfide, THT

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About This Item

Empirical Formula (Hill Notation):
C4H8S
CAS Number:
Molecular Weight:
88.17
MDL number:
UNSPSC Code:
12352005
EC Index Number:
203-728-9
NACRES:
NA.22

vapor pressure

19 hPa ( 20 °C)

Quality Level

Assay

≥98.0% (GC)

form

liquid

autoignition temp.

202 °C

potency

1850 mg/kg LD50, oral (Rat)

expl. lim.

1.1-12.1 % (v/v)

pH

7 (20 °C in H2O)

bp

121 °C/1013 hPa

mp

-96 °C

transition temp

flash point 19 °C

density

1.00 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

1S/C4H8S/c1-2-4-5-3-1/h1-4H2

InChI key

RAOIDOHSFRTOEL-UHFFFAOYSA-N

Analysis Note

Assay (GC, area%): ≥ 98.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.997 - 0.999
Identity (IR): passes test

Pictograms

FlameExclamation mark

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

55.4 °F - closed cup

Flash Point(C)

13 °C - closed cup


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.

FSL

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

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

8210959999:
JP18210959025:
8210950000:
8210950005:
8210950250:


Certificates of Analysis (COA)

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