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Basic Information
| CAS No.: | 2637-34-5 |
|---|---|
| Name: | 2-Mercaptopyridine |
| Molecular Structure: | |
|
|
|
| Formula: | C5H5NS |
| Molecular Weight: | 111.167 |
| 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; |
| EINECS: | 220-131-9 |
| Density: | 1.2 g/cm3 |
| Melting Point: | 127-130 °C(lit.) |
| Boiling Point: | 184.9 °C at 760 mmHg |
| Flash Point: | 65.6 °C |
| Solubility: | water: 50 g/L (20 °C) |
| Appearance: | yellow crystalline powder |
| Hazard Symbols: |
 Xi, Xn
|
| Risk Codes: | 36/37/38-36/38-22 |
| Safety: | 26-36-28A-22 |
| PSA: | 51.69000 |
| LogP: | 1.37030 |
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Synthetic route
- 61-90-5
L-leucine
- 105678-24-8
O-(tert-butyl) S-(pyridin-2-yl)carbonothioate
A
- 2637-34-5
2-Mercaptopyridine
B
- 13139-15-6
N-tert-butoxycarbonyl-L-leucine
Conditions
| Conditions | Yield |
|---|---|
| With triethylamine In water; N,N-dimethyl-formamide for 12h; Ambient temperature; | A n/a B 95% |
...Expand
- 105678-24-8
O-(tert-butyl) S-(pyridin-2-yl)carbonothioate
- 147-85-3
L-proline
A
- 2637-34-5
2-Mercaptopyridine
B
- 15761-39-4
1-(tert-butoxycarbonyl)-L-proline
Conditions
| Conditions | Yield |
|---|---|
| With triethylamine In water; N,N-dimethyl-formamide for 4h; Ambient temperature; | A n/a B 95% |
...Expand
- 67-56-1
methanol
- 2297-41-8
pyridin-2-yl 1-thio-β-D-glucopyranoside
A
- 2637-34-5
2-Mercaptopyridine
B
- 709-50-2
methyl beta-D-glucopyranoside
Conditions
| Conditions | Yield |
|---|---|
| With citrate-phosphate buffer; almond β-D-glucosidase at 25℃; for 1h; pH=5.0; | A n/a B 95% |
...Expand
- 46721-77-1
1-phenyl-2-(pyridin-2-ylthio)ethan-1-one
- 2637-34-5
2-Mercaptopyridine
Conditions
| Conditions | Yield |
|---|---|
| With magnesium; acetic acid In methanol at 20℃; | 94% |
- 2127-03-9
2,2'-dipyridyldisulphide
- 88-61-9
2,4-dimethylbenzenesulfonic acid
- 603-35-0
triphenylphosphine
A
- 2637-34-5
2-Mercaptopyridine
B
- 13616-82-5
2,4-dimethyl-thiophenol
C
- 791-28-6
Triphenylphosphine oxide
Conditions
| Conditions | Yield |
|---|---|
| In benzene for 2h; Product distribution; Mechanism; Heating; further reaction partners - various diaryl disulfides; | A n/a B 92% C 88% |
...Expand
- 105678-24-8
O-(tert-butyl) S-(pyridin-2-yl)carbonothioate
A
- 2637-34-5
2-Mercaptopyridine
B
- 2592-18-9
Boc-Thr-OH
Conditions
| Conditions | Yield |
|---|---|
| With triethylamine In water; N,N-dimethyl-formamide for 12h; Ambient temperature; | A n/a B 92% |
...Expand
- 105678-24-8
O-(tert-butyl) S-(pyridin-2-yl)carbonothioate
A
- 2637-34-5
2-Mercaptopyridine
B
- 3978-80-1
Boc-Tyr-OH
Conditions
| Conditions | Yield |
|---|---|
| With triethylamine In water; N,N-dimethyl-formamide for 16h; Ambient temperature; | A n/a B 92% |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| With sodium tetrahydroborate; zirconium(IV) chloride In tetrahydrofuran at 35℃; for 0.166667h; Reduction; | 90% |
| With sodium citrate; titanium(III) chloride In ethanol; water; acetic acid pH 4.5 to 6.O; | 40% |
| With water; titanium(IV) oxide In acetonitrile at 22℃; Irradiation; |
- 105678-24-8
O-(tert-butyl) S-(pyridin-2-yl)carbonothioate
A
- 2637-34-5
2-Mercaptopyridine
B
- 2488-15-5
N-tert-butoxycarbonyl-L-methionine
Conditions
| Conditions | Yield |
|---|---|
| With triethylamine In water; N,N-dimethyl-formamide for 8h; Ambient temperature; | A n/a B 90% |
...Expand
- 105678-24-8
O-(tert-butyl) S-(pyridin-2-yl)carbonothioate
A
- 2637-34-5
2-Mercaptopyridine
B
- 13734-34-4
N-tert-butoxycarbonyl-L-phenylalanine
Conditions
| Conditions | Yield |
|---|---|
| With triethylamine In water; N,N-dimethyl-formamide for 16h; Ambient temperature; | A n/a B 89% |
...Expand
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2-Mercaptopyridine
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.