2-Mercaptoethanol
[CAS# 60-24-2]

Identification

• Classification: Pharmaceutical intermediate >> Heterocyclic compound intermediate >> Quinoline compound
• Name: 2-Mercaptoethanol
• Synonyms: Thioglycol; 2-Hydroxy-1-ethanethiol
• Molecular Formula: C₂H₆OS
• Molecular Weight: 78.13
• CAS Registry Number: 60-24-2
• EC Number: 200-464-6

Properties

• Density: 1.114
• Melting point: -40 ºC
• Boiling point: 157-158 ºC
• Refractive index: 1.499-1.502
• Flash point: 73 ºC
• Water solubility: soluble

Safety Data

• Hazard Symbols: T;N
• Risk Codes: R22;R24;R36/37/38;R51/53
• Safety Description: S23;S26;S29;S36/37/39;S61

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Chronic hazardous to the aquatic environment	Aquatic Chronic	2	H411
Skin irritation	Skin Irrit.	2	H315
Serious eye damage	Eye Dam.	1	H318
Acute toxicity	Acute Tox.	3	H331
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Acute toxicity	Acute Tox.	3	H311
Acute toxicity	Acute Tox.	3	H301
Specific target organ toxicity - repeated exposure	STOT RE	2	H373
Acute toxicity	Acute Tox.	4	H302
Acute toxicity	Acute Tox.	2	H310
Skin sensitization	Skin Sens.	1A	H317
Skin corrosion	Skin Corr.	1B	H314
Acute toxicity	Acute Tox.	4	H332
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Reproductive toxicity	Repr.	2	H361
Skin sensitization	Skin Sens.	1	H317
Reproductive toxicity	Repr.	2	H361f
Specific target organ toxicity - single exposure	STOT SE	3	H336
Specific target organ toxicity - single exposure	STOT SE	3	H335
Acute toxicity	Acute Tox.	2	H330
Eye irritation	Eye Irrit.	2	H319
Specific target organ toxicity - single exposure	STOT SE	2	H371

• Transport Information: UN 2966