5-CHLORO-1,3-DIMETHYL-4-(2-PHENYLDIAZ-1-ENYL)-1H-PYRAZOLE

Modify Date: 2024-01-29 18:26:49

5-CHLORO-1,3-DIMETHYL-4-(2-PHENYLDIAZ-1-ENYL)-1H-PYRAZOLE Structure
5-CHLORO-1,3-DIMETHYL-4-(2-PHENYLDIAZ-1-ENYL)-1H-PYRAZOLE structure
Common Name 5-CHLORO-1,3-DIMETHYL-4-(2-PHENYLDIAZ-1-ENYL)-1H-PYRAZOLE
CAS Number 78431-21-7 Molecular Weight 234.68500
Density 1.26g/cm3 Boiling Point 382.9ºC at 760 mmHg
Molecular Formula C11H11ClN4 Melting Point 44ºC
MSDS N/A Flash Point 185.3ºC

 Names

Name (5-chloro-1,3-dimethylpyrazol-4-yl)-phenyldiazene
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.26g/cm3
Boiling Point 382.9ºC at 760 mmHg
Melting Point 44ºC
Molecular Formula C11H11ClN4
Molecular Weight 234.68500
Flash Point 185.3ºC
Exact Mass 234.06700
PSA 42.54000
LogP 3.79730
Index of Refraction 1.625

 MSDS

Name: 5-Chloro-1,3-dimethyl-4-(2-phenyldiaz-1-enyl)-1h-pyrazole, 97% Material Safety Data Sheet
Synonym: 5-Chloro-1,3-dimethyl-4-phenylazopyrazole
CAS: 78431-21-7
Section 1 - Chemical Product MSDS Name: 5-Chloro-1,3-dimethyl-4-(2-phenyldiaz-1-enyl)-1h-pyrazole, 97% Material Safety Data Sheet
Synonym: 5-Chloro-1,3-dimethyl-4-phenylazopyrazole
SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
78431-21-7 5-Chloro-1,3-dimethyl-4-(2-phenyldiaz- 97% unlisted
Hazard Symbols: XN
Risk Phrases: 20/21/22 36/37/38
SECTION 3 - HAZARDS IDENTIFICATION EMERGENCY OVERVIEW Harmful by inhalation, in contact with skin and if swallowed. Irritating to eyes, respiratory system and skin. Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation. Harmful if absorbed through the skin.
Ingestion:
Harmful if swallowed. May cause irritation of the digestive tract.
Inhalation:
Harmful if inhaled. Causes respiratory tract irritation.
Chronic:
Not available.
SECTION 4 - FIRST AID MEASURES
Eyes:
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Get medical aid. Wash mouth out with water.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.
SECTION 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
Use water spray, dry chemical, carbon dioxide, or chemical foam.
SECTION 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container.
SECTION 7 - HANDLING and STORAGE
Handling:
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage:
Store in a cool, dry place. Store in a tightly closed container. Store under an inert atmosphere.
SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low. Exposure Limits CAS# 78431-21-7: Personal Protective Equipment
Eyes:
Not available.
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 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Solid
Color: yellow
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 44 - 46 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density:
Molecular Formula: C11H11ClN4
Molecular Weight: 235
SECTION 10 - STABILITY AND REACTIVITY
Chemical Stability:
Not available.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Acids, bases, strong oxidizing agents.
Hazardous Decomposition Products:
Hydrogen chloride, chlorine, nitrogen oxides, carbon monoxide, carbon dioxide.
Hazardous Polymerization: Has not been reported
SECTION 11 - TOXICOLOGICAL INFORMATION RTECS#: CAS# 78431-21-7 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
5-Chloro-1,3-dimethyl-4-(2-phenyldiaz-1-enyl)-1H-pyrazole - Not listed by ACGIH, IARC, or NTP.
SECTION 12 - ECOLOGICAL INFORMATION
SECTION 13 - DISPOSAL CONSIDERATIONS Dispose of in a manner consistent with federal, state, and local regulations.
SECTION 14 - TRANSPORT INFORMATION IATA
Shipping Name: TOXIC SOLID, ORGANIC, N.O.S.
Hazard Class: 6.1
UN Number: 2811
Packing Group: III IMO
Shipping Name: TOXIC SOLID, ORGANIC, N.O.S.
Hazard Class: 6.1
UN Number: 2811
Packing Group: III RID/ADR
Shipping Name: TOXIC SOLID, ORGANIC, N.O.S.
Hazard Class: 6.1
UN Number: 2811
Packing group: III
SECTION 15 - REGULATORY INFORMATION European/International Regulations European Labeling in Accordance with EC Directives
Hazard Symbols: XN
Risk Phrases:
R 20/21/22 Harmful by inhalation, in contact with skin and if swallowed. R 36/37/38 Irritating to eyes, respiratory system and skin.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S 36/37/39 Wear suitable protective clothing, gloves and eye/face protection. WGK (Water Danger/Protection) CAS# 78431-21-7: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 78431-21-7 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 78431-21-7 is not listed on the TSCA inventory. It is for research and development use only.
SECTION 16 - ADDITIONAL INFORMATION
MSDS Creation Date: 6/10/2003 Revision #0 Date: Original. The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes. In no way shall the company be liable for any claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if the company has been advised of the possibility of such damages.

SECTION 16 - ADDITIONAL INFORMATION
N/A

 Safety Information

Hazard Codes Xn:Harmful;
Risk Phrases R20/21/22;R36/37/38
Safety Phrases S26-S36/37/39
HS Code 2933199090

 Synthetic Route

~85%

5-CHLORO-1,3-DIMETHYL-4-(2-PHENYLDIAZ-1-ENYL)-1H-PYRAZOLE Structure

5-CHLORO-1,3-DI...

CAS#:78431-21-7

Literature: Tanaka, Tomoo; Tanaka, Kuniyuki Chemical and Pharmaceutical Bulletin, 1981 , vol. 29, # 2 p. 445 - 450

~%

5-CHLORO-1,3-DIMETHYL-4-(2-PHENYLDIAZ-1-ENYL)-1H-PYRAZOLE Structure

5-CHLORO-1,3-DI...

CAS#:78431-21-7

Literature: Tanaka, Tomoo; Tanaka, Kuniyuki Chemical and Pharmaceutical Bulletin, 1981 , vol. 29, # 2 p. 445 - 450

~%

5-CHLORO-1,3-DIMETHYL-4-(2-PHENYLDIAZ-1-ENYL)-1H-PYRAZOLE Structure

5-CHLORO-1,3-DI...

CAS#:78431-21-7

Literature: Tanaka, Tomoo; Tanaka, Kuniyuki Chemical and Pharmaceutical Bulletin, 1981 , vol. 29, # 2 p. 445 - 450

 Precursor & DownStream

Precursor  2

DownStream  0

 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%

 Synonyms

5-chloro-1,3-dimethyl-4-phenyldiazenyl-1,2-diazacyclopenta-2,4-diene