Basic information
- Name:
2-Mercaptopyridine
- CAS No.:
2637-34-5
- Molecular Structure:

- Formula:
- C5H5NS
- Synonyms:
- 2-Pyridinethione;Thiopyridone-2 [French];2 (1H)-Pyridinethione;1H-pyridine-2-thione;1120-96-3;2-Thiopyridone;123574-65-2;2-Thiopyridine;2-Mercapto pyridine;
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Chemistry
Molecular Formula: C5H5NS 
Formula Weight: 111.16
mp of 2-THIOPYRIDINE (2637-34-5): 127-130 °C(lit.)
Boiling Point: 184.9 °C at 760 mmHg
Flash Point: 65.6 °C
Density of 2-THIOPYRIDINE (2637-34-5): 1.2 g/cm3
storage temp. : 2-8°C
Vapour Pressure: 0.716 mmHg at 25°C
Water Solubility : 50 g/L (20 oC)
Index of Refraction: 1.653
Sensitive : Air Sensitive
Appearance of 2-THIOPYRIDINE (2637-34-5): yellow crystalline powder

Formula Weight: 111.16
mp of 2-THIOPYRIDINE (2637-34-5): 127-130 °C(lit.)
Boiling Point: 184.9 °C at 760 mmHg
Flash Point: 65.6 °C
Density of 2-THIOPYRIDINE (2637-34-5): 1.2 g/cm3
storage temp. : 2-8°C
Vapour Pressure: 0.716 mmHg at 25°C
Water Solubility : 50 g/L (20 oC)
Index of Refraction: 1.653
Sensitive : Air Sensitive
Appearance of 2-THIOPYRIDINE (2637-34-5): yellow crystalline powder
Uses
2-THIOPYRIDINE (2637-34-5) is used as medicine and pesticide intermediates and for manufacture of antifungal pyridine thione zinc, pesticides herbicides nicosulfuron.
Toxicity Data With Reference
| 1. | ipr-mus LD50:250 mg/kg | NTIS** National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) AD691-490 . | ||
| 2. | ivn-mus LD50:250 mg/kg | AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. 93 (1953),143. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Safety: WARNING: Irritates lungs, eyes, skin; Safety glasses, adequate ventilation
Hazard Codes : Xi,Xn (Harmful; Irritant)
Risk Statements : 36/37/38-36/38-22 (Irritating to eyes, respiratory system and skin; Irritating to eyes and skin; Harmful if swallowed)
Safety Statements : 26-36-28A-22 (In case of contact with eyes, rinse immediately with plenty of water and seek medical advice; Wear suitable protective clothing; After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer); Do not breathe dust)
WGK Germany : 3
RTECS : UT9600000
F : 10-23 (Keep under argon; Sensitive to air)
Poison by intravenous and intraperitoneal routes. When heated to decomposition it emits toxic vapors of NOx and SOx.
Hazard Codes : Xi,Xn (Harmful; Irritant)
Risk Statements : 36/37/38-36/38-22 (Irritating to eyes, respiratory system and skin; Irritating to eyes and skin; Harmful if swallowed)
Safety Statements : 26-36-28A-22 (In case of contact with eyes, rinse immediately with plenty of water and seek medical advice; Wear suitable protective clothing; After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer); Do not breathe dust)
WGK Germany : 3
RTECS : UT9600000
F : 10-23 (Keep under argon; Sensitive to air)
Poison by intravenous and intraperitoneal routes. When heated to decomposition it emits toxic vapors of NOx and SOx.
Specification
Storage: Store in a cool, dry, well-ventilated area away from incompatible substances. Store in a tightly closed container. Keep refrigerated. Keep container closed when not in use.
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