2-Propanethiol
- CAS No.
- 75-33-2
- Chemical Name:
- 2-Propanethiol
- Synonyms
- propane-2-thiol;ISOPROPYL MERCAPTAN;2-PROPYLMERCAPTAN;2-Mercaptopropane;IPM(TM);FEMA 3897;iso-C3H7SH;PROPANTHIOL-2;Isopropylthiol;2-PROPANETHIOL
- CBNumber:
- CB6466705
- Molecular Formula:
- C3H8S
- Molecular Weight:
- 76.16
- MDL Number:
- MFCD00004863
- MOL File:
- 75-33-2.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| 2-Propanethiol natural (US), ≥98%, FG | W389755 | 1 each | $191 |
| 2-Propanethiol natural (US), ≥98%, FG | W389755 | 100G | $552 |
| 2-Propanethiol natural (US), ≥98%, FG | W389755 | 500G | $1370 |
| 2-Propanethiol ≥95% | W389706 | 1 each | $55.9 |
| 2-Propanethiol for synthesis | 8.07532 | 100mL | $64.5 |
| More product size | |||
| Melting point | −131 °C(lit.) |
|---|---|
| Boiling point | 57-60 °C(lit.) |
| Density | 0.82 g/mL at 25 °C(lit.) |
| vapor density | 2.6 (vs air) |
| vapor pressure | 455 mm Hg ( 37.8 °C) |
| refractive index |
n |
| FEMA | 3897 | 2-PROPANETHIOL |
| Flash point | <−30 °F |
| storage temp. | Store below +30°C. |
| pka | pK1:10.86 (25°C,μ=0.1) |
| form | Liquid |
| color | Colorless |
| Odor | Powerful skunk. |
| Odor Threshold | 0.000006ppm |
| Odor Type | alliaceous |
| biological source | synthetic |
| Water Solubility | Slightly soluble in water |
| Sensitive | Air Sensitive |
| JECFA Number | 510 |
| BRN | 605260 |
| Stability | Stable. Highly flammable - note low flashpoint. May form explosive mixtures with air. |
| InChI | 1S/C3H8S/c1-3(2)4/h3-4H,1-2H3 |
| InChIKey | KJRCEJOSASVSRA-UHFFFAOYSA-N |
| SMILES | CC(C)S |
| LogP | 1.60 |
| CAS DataBase Reference | 75-33-2(CAS DataBase Reference) |
| Substances Added to Food (formerly EAFUS) | 2-PROPANETHIOL |
| EWG's Food Scores | 1 |
| FDA UNII | E52LR62ETC |
| NIST Chemistry Reference | 2-Propanethiol(75-33-2) |
| EPA Substance Registry System | Isopropyl mercaptan (75-33-2) |
| UNSPSC Code | 12352105 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |    GHS02,GHS07,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H225-H317-H410 | |||||||||
| Precautionary statements | P210-P233-P240-P273-P280-P303+P361+P353 | |||||||||
| PPE | Eyeshields, Faceshields, Gloves | |||||||||
| Hazard Codes | F,Xi | |||||||||
| Risk Statements | 11-36/37/38-36/38 | |||||||||
| Safety Statements | 16-26-9-37/39-33 | |||||||||
| RIDADR | UN 2402 3/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | TZ7302000 | |||||||||
| F | 13 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 2930 90 98 | |||||||||
| HazardClass | 3 | |||||||||
| PackingGroup | II | |||||||||
| Storage Class | 3 - Flammable liquids | |||||||||
| Hazard Classifications | Aquatic Acute 1 Aquatic Chronic 1 Flam. Liq. 2 Skin Sens. 1 |
|||||||||
| Hazardous Substances Data | 75-33-2(Hazardous Substances Data) | |||||||||
| Toxicity | LD50 orally in Rabbit: > 2000 mg/kg | |||||||||
| Limited Quantities | 1.0 L (0.3 gallon) (liquid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml) | |||||||||
| NFPA 704 |
|
2-Propanethiol price More Price(37)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | W389755 | 2-Propanethiol natural (US), ≥98%, FG | 75-33-2 | 1 each | $191 | 2026-03-19 | Buy |
| Sigma-Aldrich | W389755 | 2-Propanethiol natural (US), ≥98%, FG | 75-33-2 | 100G | $552 | 2026-03-19 | Buy |
| Sigma-Aldrich | W389755 | 2-Propanethiol natural (US), ≥98%, FG | 75-33-2 | 500G | $1370 | 2026-03-19 | Buy |
| Sigma-Aldrich | W389706 | 2-Propanethiol ≥95% | 75-33-2 | 1 each | $55.9 | 2026-03-19 | Buy |
| Sigma-Aldrich | 8.07532 | 2-Propanethiol for synthesis | 75-33-2 | 100mL | $64.5 | 2026-03-19 | Buy |
2-Propanethiol Chemical Properties,Uses,Production
Chemical Properties
liquid with an exceedingly unpleasant smell
Occurrence
2-Propanethiol is a volatile sulfur compound that is reported to occur in irradiated beef.
Uses
2-Propanethiol is used in preparation of polyol block copolymer. It is also used as standard for petroleum analysis; as intermediate; as natural gas odorant.
Definition
ChEBI: 2-Propanethiol is an alkanethiol that is propane substituted by a sulfanyl group at position 2.
Preparation
2-Propanethiol is synthesised by the reaction of sodium hydrosulfide and brominated isopropane.
General Description
Isopropyl mercaptan is a white liquid with a strong skunk-like odor. (USCG, 1999)
Air & Water Reactions
Highly flammable. Soluble in water.
Reactivity Profile
2-Propanethiol is incompatible with acids, diazo and azo compounds, halocarbons, isocyanates, aldehydes, alkali metals, nitrides, hydrides, and other strong reducing agents. Reactions with these materials generate heat and in many cases hydrogen gas. May liberate hydrogen sulfide when mixed with an acid.
Hazard
Highly flammable, dangerous fire hazard.
Health Hazard
Inhalation causes loss of sense of smell, muscular weakness, convulsions, respiratory paralysis. Ingestion causes nausea and vomiting. Contact with eyes or skin causes irritation.
Purification Methods
Purify it as for propane-1-thiol above. [Beilstein 1 IV 1498.]
2-Propanethiol Preparation Products And Raw materials
Raw materials
Preparation Products
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| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8742 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 +8613131129325 | sales1@chuanghaibio.com | China | 5237 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21594 | 55 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418679 +8618949832763 | info@tnjchem.com | China | 2988 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29827 | 58 |
| SHANDONG ZHI SHANG CHEMICAL CO.LTD | +86 18953170293 | sales@sdzschem.com | China | 1497 | 58 |
| Xiamen AmoyChem Co., Ltd | +86-86-5926051114 +8615060885618 | sales@amoychem.com | China | 6369 | 58 |
| Shandong chuangyingchemical Co., Ltd. | 18853181302 | sale@chuangyingchem.com | CHINA | 5906 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49977 | 58 |
| SIMAGCHEM CORP | +86-5922680277 +86-13806087780 | sale@simagchem.com | China | 17346 | 58 |
View Lastest Price from 2-Propanethiol manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-03-20 | 2-Propanethiol
75-33-2
|
US $10.00 / KG | 100KG | 99% | 100 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2025-05-26 | 2-Propanethiol
75-33-2
|
US $2.70 / kg | 10kg | 99% | 10000kg | Hebei Chuanghai Biotechnology Co,.LTD | |
 |
2023-07-27 | 2-Propanethiol
75-33-2
|
US $1.10 / g | 1g | 99.0% Min | 100 Tons | Shaanxi Didu New Materials Co. Ltd |
-
- 2-Propanethiol
75-33-2
- US $10.00 / KG
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- 2-Propanethiol
75-33-2
- US $2.70 / kg
- 99%
- Hebei Chuanghai Biotechnology Co,.LTD
-
- 2-Propanethiol
75-33-2
- US $1.10 / g
- 99.0% Min
- Shaanxi Didu New Materials Co. Ltd
