2-Propanethiol

Basic Information

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CAS Number

75-33-2

Molecular Formula

C3H8S

Molecular Weight

76.16 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Hydrocarbons

Basic Physical Properties

Melting Point

−131 °C

Boiling Point

57-60 °C

Density

0.82 g/mL at 25 °C

Refractive Index

n20/D 1.426(lit.)

Vapor Pressure

455 mmHg ( 37.8 °C)

SMILES

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CC(C)S

InChI

InChI=1S/C3H8S/c1-3(2)4/h3-4H,1-2H3

InChIKey

KJRCEJOSASVSRA-UHFFFAOYSA-N

LogP

1.3246

Topological Polar Surface Area

0.0 Å²

Hydrogen Bond Donor/Acceptor

0 / 0

Complexity

10.8

Safety Information

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GHS Hazard Pictograms

H225

H315

H319

H335

Hazard Statement

H225 Highly Flammable liquid and vapor
Flammable liquids

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Hazard Class

Class 3 Class 3

Stability

Stable. Highly flammable - note low flashpoint. May form explosive mixtures with air.

Sensitiveness

Air Sensitive

Synonyms & References

English

1-Methylethanethiol
Isopropyl mercaptan
Propanethiol
2-Propanethiol
2-Propanethiolneat
2-mercaptopropane
FEMA 3897
i-propyl mercaptan
iso-C3H7SH
Isopropanethiol
iso-propyl mercaptan
Isopropylthiol
Propan-2-thiol
propane-2-thiolate
PROPANTHIOL-2
2-Propylmercaptan
NSC 87537
i-Propylthiol
Isopropyl Mercaptan
2-Mercaptopropane
propane-2-thiol

MDL Number

MFCD00004863

FAQ

What regulatory guidelines apply to 2-Propanethiol (CAS: 75-33-2)?

2-Propanethiol (CAS: 75-33-2) falls under the classification of a flammable liquid in the Globally Harmonized System (GHS) and is subject to the European Union's REACH regulations. In the United States, it is regulated by the EPA and must comply with OSHA standards. It is also classified as a hazardous substance by the FDA. Proper labeling, storage, and handling are essential to ensure compliance with these regulations.

Are there alternatives to 2-Propanethiol (CAS: 75-33-2) in synthesis?

While 2-Propanethiol (CAS: 75-33-2) is a common choice for certain organosulfur compounds, there are alternatives such as 1-Propanethiol, which can serve similar functions. Other substitutes include thiols like ethanethiol and methanethiol, depending on the specific application. These alternatives may offer similar reactivity but with different physical properties.

What is the market or research trend for 2-Propanethiol (CAS: 75-33-2)?

2-Propanethiol (CAS: 75-33-2) has seen steady demand in various industries, particularly in the production of fragrances, detergents, and as a chemical intermediate. Research trends are focusing on its use in biocides and as a flavor and fragrance ingredient. Market trends indicate growing interest in sustainable alternatives, but 2-Propanethiol remains a key player in these sectors due to its unique properties.

How should waste containing 2-Propanethiol (CAS: 75-33-2) be handled?

Waste containing 2-Propanethiol (CAS: 75-33-2) should be collected in appropriate containers and stored in a well-ventilated area. It is advisable to incinerate the waste in an approved facility or use professional waste disposal services that specialize in hazardous materials. Environmental protection precautions should include proper labeling and the use of personal protective equipment to prevent exposure during handling.