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Anhui Royal Chemical Co., Ltd.

CAS No 67-51-6, 99.5%, Blocking Agent manufacturer / supplier in China, offering 3, 5-Dimethyl Pyrazole CAS No 67-51-6, Good Quality Industrial Linear Alkyl Benzene, 2-Hydroxy-4-Methoxybenzophenone UV-9 CAS No 131-57-7 and so on.

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Supplier Homepage Product Pharmaceutical Intermediates 3, 5-Dimethyl Pyrazole CAS No 67-51-6

3, 5-Dimethyl Pyrazole CAS No 67-51-6

FOB Price: US $1 / KG
Min. Order: 25 KG
Min. Order FOB Price
25 KG US $1/ KG
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Production Capacity: 300mt
Transport Package: 25kg/Drum
Payment Terms: L/C, T/T, D/P

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Basic Info
  • Model NO.: Cas No 67-51-6
  • Appearance: Powder
  • Colour: White
  • Moisture: ≤0.5%
  • Formula: C5h8n2
  • Trademark: N/A
  • Origin: China
  • Type: Pharmaceutical Intermediates
  • Quality: Industrial
  • CAS No: 67-51-6
  • Melting Point: 106-108ºC
  • Boiling Point: 208
  • Specification: 99.5%
  • HS Code: 2933199090
Product Description
Product IdentificationBack to Contents
Product Name

3,5-Dimethylpyrazole
Synonyms

,5-Dimethylpyrazole
1,2,3-Triazole
1H-3,5-Dimethylpyrazole
2H-1,2,3-Triazole
2H-Triazole
Osotriazole
Pyrrodiazole
TH 564
Triazacyclopentadiene
U 6245
CAS

288-36-8
CAS

67-51-6
Formula

C2H3N3
Formula

C5H8N2
Molecular Weight

69.06
Molecular Weight

96.13
EINECS

200-657-5
RTECS

UQ6477600
RTECS Class

Drug
Beilstein/Gmelin

104766
Beilstein/Gmelin

106325
Beilstein Reference

4-26-00-00029
Beilstein Reference

5-23-05-00110
Physical and Chemical PropertiesBack to Contents
Appearance

Solid.
Appearance

White powder.
Solubility in water

Soluble
Solubility in water

Very soluble
Melting Point

23-25
Boiling Point

208
Boiling Point

218
Vapor Pressure

0.2 (25 C)
Vapor Pressure

0.4 (25 C)
Density

0.8839 g/cm3 (16C)
Density

1.192 g/cm3
pKa/pKb

9.00 (pKa)
pKa/pKb

9.74 (pKb)
Partition Coefficient

.23
Partition Coefficient

1.24
Heat Of Vaporization

42.1 kJ/mol
Heat Of Vaporization

43.6 kJ/mol
Heat Of Combustion

-3130 kJ/mol
Usage

Building block for more complex chemical compounds, such as pharmaceutical drugs like tazobactam.
Refractive Index

1.4854 (25 C)
First Aid MeasuresBack to Contents
Ingestion

Get medical aid. Wash mouth out with water.
Ingestion

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Inhalation

Causes respiratory tract irritation. May be harmful if inhaled.
Skin

Causes skin irritation. May be harmful if absorbed through the skin.
Skin

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
Skin

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Eyes

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Eyes

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Eyes

Causes eye irritation.
Handling and StorageBack to Contents
Storage

Store in a cool, dry place. Store in a tightly closed container.
Storage

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Handling

Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Hazards IdentificationBack to Contents
Ingestion

May cause gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated.
Ingestion

May cause irritation of the digestive tract. May be harmful if swallowed.
Inhalation

May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
Skin

May cause skin irritation. The toxicological properties of this material have not been fully investigated.
Eyes

May cause eye irritation. The toxicological properties of this material have not been fully investigated.
EC Risk Phrase

R 22
EC Risk Phrase

R 22 36/37/38
EC Safety Phrase

S 26 36/37/39
EC Safety Phrase

S 36/37
Exposure Controls/Personal ProtectionBack to Contents
Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Personal Protection

Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Fire Fighting MeasuresBack to Contents
Flash Point

107
Flash Point

91
Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
Accidental Release MeasuresBack to Contents
Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.
Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container.
Stability and ReactivityBack to Contents
Stability

No data.
Incompatibilities

Oxidizing agents.
Stability

Stable under normal temperatures and pressures.
Incompatibilities

 
Disposal Code

5
Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide.
Decomposition

Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
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