Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 4-Chloro-1H-pyrazole
Price: Check
Purity: 97.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 4-Chloro-1H-pyrazole
Price: ￥678.0/25g ￥228.0/5g
Purity: 98.0%
Stocking Period: Inquiry
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4-Chloropyrazole
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

15878-00-9

15878-00-9 structure

15878-00-9 structure

Name: 4-Chloro-1H-pyrazole
Chemical Name: 4-Chloro-1H-pyrazole
CAS Number: 15878-00-9
Molecular Formula: C₃H₃ClN₂
Molecular Weight: 102.522
Create Date: 2018-08-17 12:53:26
Modify Date: 2025-08-25 21:34:08

Name	4-Chloro-1H-pyrazole
Synonyms	4-Chloropyrazole MFCD00159634 1H-Pyrazole, 4-chloro- 4-Chloro-1H-pyrazole

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 ℃

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

Hazard Codes	Xi
Risk Phrases	R36/37/38
Safety Phrases	S26
HS Code	2933199090

Precursor 5
288-13-1 3112-31-0 56-23-5 7782-50-5
2075-45-8
DownStream 5
35852-81-4 80199-86-6 80200-05-1 88670-78-4
87844-47-1

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%

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