2-Propanethiol

Product Name: 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
Formula Weight: 76.16
MOL File: 75-33-2.mol

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2-Propanethiol Property

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: n20/D 1.426(lit.)
FEMA: 3897 | 2-PROPANETHIOL
Flash point:: <−30 °F
storage temp.: Store below +30°C.
form: Liquid
pka: pK1:10.86 (25°C,μ=0.1)
color: Colorless
Odor: Powerful skunk.
biological source: synthetic
Odor Type: alliaceous
Odor Threshold: 0.000006ppm
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.
LogP: 1.60
CAS DataBase Reference: 75-33-2(CAS DataBase Reference)
NIST Chemistry Reference: 2-Propanethiol(75-33-2)
EPA Substance Registry System: Isopropyl mercaptan (75-33-2)

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Safety

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: Yes
HS Code: 2930 90 98
HazardClass: 3
PackingGroup: II
Hazardous Substances Data: 75-33-2(Hazardous Substances Data)
Toxicity: LD50 orally in Rabbit: > 2000 mg/kg

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

H317May cause an allergic skin reaction

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P273Avoid release to the environment.

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

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: W389755
Product name: 2-Propanethiol
Purity: natural (US), ≥98%, FG
Packaging: 1 unit
Price: $176.7
Updated: 2025/07/31

Sigma-Aldrich

Product number: W389755
Product name: 2-Propanethiol
Purity: natural (US), ≥98%, FG
Packaging: 1 unit
Price: $176.7
Updated: 2025/07/31

Sigma-Aldrich

Product number: W389755
Product name: 2-Propanethiol
Purity: natural (US), ≥98%, FG
Packaging: 100G
Price: $425
Updated: 2025/07/31

Sigma-Aldrich

Product number: W389755
Product name: 2-Propanethiol
Purity: natural (US), ≥98%, FG
Packaging: 500G
Price: $1340
Updated: 2025/07/31

Sigma-Aldrich

Product number: W389706
Product name: 2-Propanethiol
Purity: ≥95%
Packaging: 1 unit
Price: $54.6
Updated: 2025/07/31

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2-Propanethiol Chemical Properties,Usage,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

ISOPROPYLSULFONYL CHLORIDE

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2-Propanethiol Suppliers

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View Lastest Price from 2-Propanethiol manufacturers

Hebei Chuanghai Biotechnology Co., Ltd

Product: 2-Propanethiol 75-33-2
Price: US $10.00/KG
Min. Order: 100KG
Purity: 99%
Supply Ability: 100 mt
Release date: 2024-11-21

Hebei Chuanghai Biotechnology Co,.LTD

Product: 2-Propanethiol 75-33-2
Price: US $2.70/kg
Min. Order: 10kg
Purity: 99%
Supply Ability: 10000kg
Release date: 2024-08-20

Baoji Guokang Healthchem co.,ltd

Product: 2-Propanethiol 75-33-2
Price: US $0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 10TONS
Release date: 2021-06-04

75-33-2, 2-PropanethiolRelated Search:

1,2-Ethanedithiol PYRITHIOXIN Sodium thiomethoxide Isopropyl acetate ISOPROPYL LAURATE METHYL MERCAPTAN Ethanethiol Isopropyl alcohol Benzyl mercaptan PYRITHIOXIN DIHYDROCHLORIDE Allyl mercaptan 1-Dodecanethiol 2-Ethylhexyl 10-ethyl-4-[[2-[(2-ethylhexyl)oxy]-2-oxoethyl]thio]-4-methyl-7-oxo-8-oxa-3,5-dithia-4-stannatetradecanoate ISOPROPYLSULFONYL CHLORIDE ISOPROPYLHYDRAZINE HYDROCHLORIDE Isopropylboronic acid Diisopropyl ether 1-PROPANETHIOL GC STANDARD,propanethiol(non-specificname

2-PROPANETHIOL

2-PROPYLMERCAPTAN

iso-C3H7SH

Isopropylthiol

mercaptanisopropylique

Propanethiol-(2)

FEMA 3897

IPM(TM)

ISOPROPYL MERCAPTAN

Isopropanethiol

Propan-2-thiol

PROPANTHIOL-2

propane-2-thiol

2-PROPANETHIOL 97+%

Isopropyl thioalcohol

Thioisopropyl alcohol

2-Propanethiol,98%

Isopropy mercaptan

2-Propanethiol, 98% 500ML

2-Propanethiol, 98% 50ML

2-PROPANETHIOL FOR SYNTHESIS 45 KG

2-PROPANETHIOL FOR SYNTHESIS 100 ML

2-PROPANETHIOL FOR SYNTHESIS 500 ML

1-Methylethanethiol

2-Mercaptopropane

2-propanemercaptan

2-Propanethiol >=97.0% (GC)

2-Propanethiol&gt

2-Propanethiol,96%

2-Propanethiol USP/EP/BP

TIANFU-CHEM - 2-Propanethiol

2-Propanethiol, ≥ 96.0%

2-Propanethiol, Isopropanethiol

Phloroglucinol Impurity 130

sopropyl mercaptan

75-33-2

75-33-6

CH32CHSH

75332

Building Blocks

Organic Building Blocks

Sulfur Compounds

Thiols/Mercaptans

thiol Flavor