3-Mercapto-1,2,4-triazole

CAS #	EC Number	Hill Formula	Molar Mass
3179-31-5	221-656-6	C₂H₃N₃S	101.13 g/mol

CAS #

EC Number

Hill Formula

Molar Mass

3179-31-5

221-656-6

C₂H₃N₃S

101.13 g/mol

Description
Catalogue Number	814268
Synonyms	1H-1,2,4-Triazol-3-thiol

Description

Catalogue Number

814268

Synonyms

1H-1,2,4-Triazol-3-thiol

Product Information
CAS number	3179-31-5
EC number	221-656-6
Hill Formula	C₂H₃N₃S
Molar Mass	101.13 g/mol
HS Code	2933 99 80
Structure formula Image

Product Information

CAS number

3179-31-5

EC number

221-656-6

Hill Formula

C₂H₃N₃S

Molar Mass

101.13 g/mol

HS Code

2933 99 80

Structure formula Image

Applications
Application	3-Mercapto-1,2,4-triazole for synthesis. CAS 3179-31-5, pH 4.0 (85 g/l, H₂O, 20 °C). MSDS and product info below.

Applications

Application

3-Mercapto-1,2,4-triazole for synthesis. CAS 3179-31-5, pH 4.0 (85 g/l, H₂O, 20 °C). MSDS and product info below.

Physicochemical Information
Ignition temperature	370 °C
Melting Point	217 - 220 °C
pH value	4.0 (85 g/l, H₂O, 20 °C)
Bulk density	550 kg/m3
Solubility	85 g/l

Physicochemical Information

Ignition temperature

370 °C

Melting Point

217 - 220 °C

pH value

4.0 (85 g/l, H₂O, 20 °C)

Bulk density

550 kg/m3

Solubility

85 g/l

Toxicological Information
LD 50 oral	LD50 Rat 1353 mg/kg

Toxicological Information

LD 50 oral

LD50 Rat 1353 mg/kg

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H302: Harmful if swallowed. H319: Causes serious eye irritation.
Precautionary Statement(s)	P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Storage class	10 - 13 Other liquids and solids
WGK	WGK 1 slightly water endangering
Disposal	3 Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

Safety Information according to GHS

Hazard Pictogram(s)

Hazard Statement(s)

H302: Harmful if swallowed.
H319: Causes serious eye irritation.

Precautionary Statement(s)

P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Storage class

10 - 13 Other liquids and solids

WGK

WGK 1 slightly water endangering

Disposal

3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

Safety Information
Hazard Symbols	Harmful
Categories of danger	harmful, irritant
R Phrase	R 22-36 Harmful if swallowed.Irritating to eyes.
S Phrase	S 26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

Safety Information

Hazard Symbols

Harmful

Categories of danger

harmful, irritant

R Phrase

R 22-36
Harmful if swallowed.Irritating to eyes.

S Phrase

S 26
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

Storage and Shipping Information
Storage	Store below +30°C.

Storage and Shipping Information

Storage

Store below +30°C.

Specifications
Assay (HPLC, area%)	≥ 98.0 % (a/a)
Melting range (lower value)	≥ 217 °C
Melting range (upper value)	≤ 220 °C
Identity (IR)	passes test

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3-Mercapto-1,2,4-triazole

Key Spec Table