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
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)
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
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.
N-Bromosuccinimide Price
- Product number
- W306207
- Product name
- 2-Thiophenethiol
- Purity
- ≥90%, FG
- Packaging
- sample-k
- Price
- $54.6
- Updated
- 2024/03/01
- Product number
- W306207
- Product name
- 2-Thiophenethiol
- Purity
- ≥98%, FG
- Packaging
- 100g
- Price
- $523
- Updated
- 2024/03/01
- Product number
- W306207
- Product name
- 2-Thiophenethiol
- Purity
- ≥98%, FG
- Packaging
- 1kg
- Price
- $3490
- Updated
- 2024/03/01
- Product number
- W306207
- Product name
- 2-Thiophenethiol
- Purity
- ≥98%, FG
- Packaging
- 25g
- Price
- $217
- Updated
- 2023/01/07
- Product number
- T1680
- Product name
- 2-Thiophenethiol
- Purity
- >97.0%(T)
- Packaging
- 5g
- Price
- $136
- Updated
- 2024/03/01
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
2-Thiophenethiol Suppliers
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View Lastest Price from 2-Thiophenethiol manufacturers
- Product
- Thiophenethiol 7774-74-5
- Price
- US $35.00-1.20/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2024-04-17
- Product
- Thiophenethiol 7774-74-5
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 50000KG/month
- Release date
- 2023-09-08
- Product
- Thiophenethiol 7774-74-5
- Price
- US $0.00-0.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 500000kg
- Release date
- 2023-07-11