4-Chloro-1H-pyrazole

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Names

[ CAS No. ]:
15878-00-9

[ Name ]:
4-Chloro-1H-pyrazole

[Synonym ]:
4-Chloropyrazole
MFCD00159634
1H-Pyrazole, 4-chloro-
4-Chloro-1H-pyrazole

Chemical & Physical Properties

[ Density]:
1.4±0.1 g/cm3

[ Boiling Point ]:
220.0±0.0 °C at 760 mmHg

[ Melting Point ]:
75-76ºC

[ Molecular Formula ]:
C3H3ClN2

[ Molecular Weight ]:
102.522

[ Flash Point ]:
98.8±5.4 °C

[ Exact Mass ]:
101.998474

[ PSA ]:
28.68000

[ LogP ]:
1.26

[ Vapour Pressure ]:
0.2±0.4 mmHg at 25°C

[ Index of Refraction ]:
1.563

[ Storage condition ]:
2~8 ℃

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UQ6445000
CHEMICAL NAME :
Pyrazole, 4-chloro-
CAS REGISTRY NUMBER :
15878-00-9
BEILSTEIN REFERENCE NO. :
0106355
LAST UPDATED :
199612
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C3-H3-Cl-N2
MOLECULAR WEIGHT :
102.53
WISWESSER LINE NOTATION :
T5MNJ EG

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
527 mg/kg
TOXIC EFFECTS :
Behavioral - anticonvulsant Behavioral - somnolence (general depressed activity)
REFERENCE :
AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium) V.4- 1898- Volume(issue)/page/year: 121,443,1959

Safety Information

[ Hazard Codes ]:
Xi

[ Risk Phrases ]:
R36/37/38

[ Safety Phrases ]:
S26

[ HS Code ]:
2933199090

Precursor & DownStream

Precursor

  • Pyrazole
  • 3,5-Pyrazoledicarboxylic acid monohydrate
  • Carbon tetrachloride
  • Chlorine
  • 4-Bromopyrazole

DownStream

  • 4-Chloro-1-methyl-1H-pyrazole
  • (4-chloropyrazol-1-yl)methanol
  • 4-[2-(4-chloropyrazol-1-yl)ethoxy]phenol
  • 4-chloro-1-[2-(4-phenylmethoxyphenoxy)ethyl]pyrazole
  • 4-chloro-1-hydroxypyrazole

Customs

[ HS Code ]: 2933199090

[ Summary ]:
2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Related Compounds

  • 5-bromo-4-chloro-1H-pyrazole
  • 1-benzyl-4-chloro-1H-pyrazole
  • 4-chloro-1H-pyrazole-1-methanol
  • 3,5-dibromo-4-chloro-1H-pyrazole
  • 4-Chloro-1H-pyrazole-5-carbonitrile
  • 4-chloro-1H-pyrazole-5-carbaldehyde
  • N-(6-fluorobenzo[d]thiazol-2-yl)-3-methyl-N-(pyridin-2-ylmethyl)benzamide
  • (E)-N-(6-fluorobenzo[d]thiazol-2-yl)-N-(pyridin-2-ylmethyl)-3-(thiophen-2-yl)acrylamide
  • N-(6-bromobenzo[d]thiazol-2-yl)-4-(dimethylamino)-N-(pyridin-2-ylmethyl)benzamide
  • (E)-N-(4,6-difluorobenzo[d]thiazol-2-yl)-3-(4-nitrophenyl)-N-(pyridin-2-ylmethyl)acrylamide
  • N-(4,6-difluorobenzo[d]thiazol-2-yl)-2-(2,5-dioxopyrrolidin-1-yl)-N-(pyridin-2-ylmethyl)acetamide
  • N-(4,6-difluorobenzo[d]thiazol-2-yl)-2-phenyl-N-(pyridin-2-ylmethyl)acetamide
  • N-(4,6-dimethylbenzo[d]thiazol-2-yl)-3-phenoxy-N-(pyridin-2-ylmethyl)propanamide
  • N-(4,7-dimethoxybenzo[d]thiazol-2-yl)-N-(pyridin-2-ylmethyl)butyramide
  • N-(4,7-dimethoxybenzo[d]thiazol-2-yl)-3-phenyl-N-(pyridin-2-ylmethyl)propanamide
  • 2-chloro-N-(4,7-dimethoxybenzo[d]thiazol-2-yl)-5-nitro-N-(pyridin-2-ylmethyl)benzamide
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