Pyrazole manufacturers and suppliers

Pyrazole suppliers

Properties

Melting point:: 67-70 °C (lit.)

Boiling point:: 186-188 °C (lit.)

Density: 1.4088 (rough estimate)

vapor pressure: 21Pa at 20℃

refractive index: 1.4203

Flash point:: 186-188°C

storage temp.: Store below +30°C.

solubility: Chloroform, Methanol

pka: 2.49(at 25℃)

form: Crystals or Crystalline Powder

color: White to yellow

Water Solubility: SOLUBLE

Sensitive: Hygroscopic

Merck: 14,7960

BRN: 103775

InChI: 1S/C3H4N2/c1-2-4-5-3-1/h1-3H,(H,4,5)

InChIKey: WTKZEGDFNFYCGP-UHFFFAOYSA-N

SMILES: c1cn[nH]c1

LogP: 0.33 at 25℃

CAS DataBase Reference: 288-13-1(CAS DataBase Reference)

NIST Chemistry Reference: 1H-Pyrazole(288-13-1)

EPA Substance Registry System: Pyrazole (288-13-1)

Safety Information

Symbol(GHS): GHS05,GHS06,GHS08

Signal word: Danger

Hazard statements: H302-H311-H315-H318-H373-H412

Precautionary statements: P273-P280-P301+P312-P302+P352+P312-P305+P351+P338-P314

target organs: spleen,Thyroid

Hazard Codes: Xn

Risk Statements: 22-36/37/38-52-20/21/22

Safety Statements: 26-36/37-61-37/39-36

RIDADR: 2811

WGK Germany: 1

RTECS: UQ4900000

TSCA: TSCA listed

HazardClass: 6.1(b)

PackingGroup: III

HS Code: 29331990

Storage Class: 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects

Hazard Classifications: Acute Tox. 3 Dermal
Acute Tox. 4 Oral
Aquatic Chronic 3
Eye Dam. 1
Skin Irrit. 2
STOT RE 1

Toxicity: LD50 (24 hr) in rats, mice (mmol/kg): 19, 21 i.v.; 21, 22 orally (Magnussen)

REACH Registrations: Active

Limited Quantities: 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid)

Excepted Quantities: Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)

Use

The acute toxic symptoms from oral administrationof pyrazole in experimental animalswere ataxia, muscle weakness, and respiratorydepression. It is less toxic than pyrroleand pyrrolidine. The oral LD50 value in miceis within the range 1450 mg/kg.Pyrazole exhibited reproductive toxicityin rats and mice when administered by oralor intraperitoneal route. The effects includefetal death, developmental abnormalities pertainingto the urogenital system, and postimplantationmortality.

You can find Pyrazole suppliers, manufacturers, and distributors from countries such as CHINA, United States and the United Kingdom here. Browse to the tetrahydrofuran product information displayed by the supplier, as well as the supplier's contact and capability information.