ChemicalBook > CAS DataBase List > 2-Thiophenethiol

2-Thiophenethiol

Product Name
2-Thiophenethiol
CAS No.
7774-74-5
Chemical Name
2-Thiophenethiol
Synonyms
2-THIOPHENETHIOL;THIOPHENE-2-THIOL;FEMA 3062;2-THIENYL MERCAPTAN;2-MERCAPTOTHIOPHENE;2-Thienylthiol;THIOPHENETHIOL;2-THIOPHENTHIOL;Thienylmercaptan;2-MERCAPTOTHIOPHEN
CBNumber
CB6257655
Molecular Formula
C4H4S2
Formula Weight
116.2
MOL File
7774-74-5.mol
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2-Thiophenethiol Property

Boiling point:
129 °C(lit.)
Density 
1.252 g/mL at 25 °C(lit.)
refractive index 
n20/D 1.62(lit.)
FEMA 
3062 | 2-THIENYL MERCAPTAN
Flash point:
150 °F
storage temp. 
Keep in dark place,Inert atmosphere,2-8°C
solubility 
soluble in Chloroform, DMSO
form 
clear liquid
pka
6.38±0.43(Predicted)
color 
Light yellow to Brown
Odor
at 0.10 % in dipropylene glycol. burnt caramel roasted coffee
Odor Type
caramellic
Sensitive 
Air Sensitive
JECFA Number
1052
BRN 
104650
InChIKey
SWEDAZLCYJDAGW-UHFFFAOYSA-N
LogP
2.20
CAS DataBase Reference
7774-74-5(CAS DataBase Reference)
NIST Chemistry Reference
2-Thiophenethiol(7774-74-5)
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Safety

Hazard Codes 
Xi,Xn
Risk Statements 
36/37/38-36/38-21/22-20/22
Safety Statements 
26-36-36/37/39
RIDADR 
UN3334
WGK Germany 
3
F 
10-13-23
Hazard Note 
Irritant
HazardClass 
9
PackingGroup 
III
HS Code 
29349990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
W306207
Product name
2-Thiophenethiol
Purity
≥90%, FG
Packaging
sample-k
Price
$54.6
Updated
2024/03/01
Sigma-Aldrich
Product number
W306207
Product name
2-Thiophenethiol
Purity
≥98%, FG
Packaging
100g
Price
$523
Updated
2024/03/01
Sigma-Aldrich
Product number
W306207
Product name
2-Thiophenethiol
Purity
≥98%, FG
Packaging
1kg
Price
$3490
Updated
2024/03/01
Sigma-Aldrich
Product number
W306207
Product name
2-Thiophenethiol
Purity
≥98%, FG
Packaging
25g
Price
$217
Updated
2023/01/07
TCI Chemical
Product number
T1680
Product name
2-Thiophenethiol
Purity
>97.0%(T)
Packaging
5g
Price
$136
Updated
2024/03/01
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2-Thiophenethiol Chemical Properties,Usage,Production

Chemical Properties

Clear yellowish to orange liquid

Chemical Properties

2-Thienyl mercaptan has a very unpleasant, burnt caramellic and sulfuraceous odor with a similar flavor.

Uses

2-Thiophenethiol is used in biological studies to evaluate the changes in key odorants of hazelnut induced by roasting.

Definition

ChEBI: Thiophene-2-thiol is a heteroarene.

Preparation

By heating sodium sulfosuccinate with phosphorous trichloride; also by reduction of thiophene-2-sulfonyl chloride.

Synthesis Reference(s)

Journal of the American Chemical Society, 75, p. 6316, 1953 DOI: 10.1021/ja01120a518

Synthesis

A three-necked flask fitted with a mechanical stirrer and a 600-ml dropping funnel filled with dry nitrogen is charged with 500 ml of tetrahydrofuran and 56 g (53 ml, 0.67 mole) of thiophene. This mixture is stirred under nitrogen and cooled to ?40° with an acetone–dried ice bath while 490 ml (0.662 mole) of 1.35 M n-butyllithium in pentane is added over 5 minutes via the dropping funnel. The mixture's temperature is held between ?30° and ?20° for 1 hour, then lowered to ?70° by adding dry ice to the bath. Powdered sulfur crystals (20.4 g, 0.638 g) are added to the stirred mixture in one aliquot. After 30 minutes, the temperature is allowed to rise to ?10°, and then the yellow solution is carefully poured into 1 l of rapidly stirred ice water. These aqueous extracts are combined with the aqueous layer, and the whole is chilled and carefully acidified with 4 N sulfuric acid. This aqueous phase is immediately extracted with three 200-ml portions of diethyl ether. The combined ether extracts are washed twice with 100 ml portions of water to remove acid and remaining tetrahydrofuran and dried over anhydrous sodium sulfate. After the removal of ether, the residual golden-brown oil is purified by distillation at reduced pressure. The portion boiling at 53–56° (5 mm) is collected, yielding 49.5–53.5 g (65–70%) of 2-thiophenethiol as a yellow oil.

2-Thiophenethiol Preparation Products And Raw materials

Raw materials

Preparation Products

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2-Thiophenethiol Suppliers

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View Lastest Price from 2-Thiophenethiol manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Thiophenethiol 7774-74-5
Price
US $120.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-05-24
Hebei Weibang Biotechnology Co., Ltd
Product
Thiophenethiol 7774-74-5
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10 mt
Release date
2024-12-09
JINING XINHE CHEMICAL CO., LTD
Product
2-Thiophenethiol 7774-74-5
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
98%
Supply Ability
10ton
Release date
2024-07-16

7774-74-5, 2-ThiophenethiolRelated Search:

PYRITHIOXIN DIHYDROCHLORIDE Thiophene Ethanethiol 1-Dodecanethiol 1,2-Ethanedithiol METHYL MERCAPTAN Sodium thiomethoxide PYRITHIOXIN 2-Ethylhexyl 10-ethyl-4-[[2-[(2-ethylhexyl)oxy]-2-oxoethyl]thio]-4-methyl-7-oxo-8-oxa-3,5-dithia-4-stannatetradecanoate 2-BENZENESULFONYLTHIOPHENE 5-[(BENZOYLAMINO)METHYL]THIOPHENE-2-SULFONYL CHLORIDE 4,5-Dibromothiophene-2-sulphonyl chloride 5-Chlorothiophene-2-sulfonyl chloride 4-(BENZENESULFONYL)THIOPHENE-2-SULFONYL CHLORIDE 4-BROMO-5-CHLOROTHIOPHENE-2-SULFONYL CHLORIDE 5-(PHENYLSULFONYL)THIOPHENE-2-SULFONYL CHLORIDE 3-BROMO-5-CHLOROTHIOPHENE-2-SULFONYL CHLORIDE 2-Thiophenesulfonyl chloride

  • FEMA 3062
  • 2-MERCAPTOTHIOPHENE
  • Thienylmercaptan
  • 2-Mercaptothiophene~2-Thienyl mercaptan
  • 2-MERCAPTOTHIOPHENE FEMA NO.--------
  • Thiophene-2-thiol,97%
  • Thiophene-2-thiol,96%
  • 2-Thiophenethiol(6CI,7CI,8CI,9CI)
  • 2-MERCAPTOTHIOPHEN
  • 2-Mercaptothiophene, GC 97+%
  • 2-THIOPHENETHIOL / 2-MERCAPTOTHIOPHENE
  • 2-Mercaptothiophene, Thienylmercaptan
  • 2-THIOPHENETHIOL, 90+%
  • 2-Thiophenethiol,2-Mercaptothiophene, Thienylmercaptan
  • Thiophene-2-thiol, contains diMer, 97% as MonoMer
  • 2-Mercaphothiophene
  • 2-Mercaptothiophene, Thiophene-2-thiol
  • 2-Sulphanylthiophene 97%
  • 2-Thiophenethiol, 98%, 98%
  • 2-THIENYL MERCAPTAN
  • 2-THIOPHENETHIOL
  • 2-THIOPHENTHIOL
  • THIOPHENETHIOL
  • THIOPHENE-2-THIOL
  • 2-Thienyl hydrosulfide
  • 2-Sulfanylthiophene
  • Thiophenethiol USP/EP/BP
  • 2-Thienylthiol
  • TIANFU CHEM---Thiophenethiol
  • 2-Thiophenethiol (6CI, 7CI, 8CI, 9CI, ACI)
  • 2-thiophene mercaptan
  • 2-Thiophenethiol (contains dimer)
  • 7774-74-5
  • 777-74-5
  • C4H4S2
  • Heterocycle-oher series
  • THIOL
  • Thiophene&Benzothiophene
  • thiol Flavor