3-Chlorpyrazin-2-carbonitril

Modify Date: 2025-08-25 18:21:12

3-Chlorpyrazin-2-carbonitril Structure
3-Chlorpyrazin-2-carbonitril structure
Common Name 3-Chlorpyrazin-2-carbonitril
CAS Number 55557-52-3 Molecular Weight 139.542
Density 1.4±0.1 g/cm3 Boiling Point 264.1±35.0 °C at 760 mmHg
Molecular Formula C5H2ClN3 Melting Point 45-47°C
MSDS N/A Flash Point 113.5±25.9 °C

 Names

Name 3-Chloropyrazine-2-carbonitrile
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.4±0.1 g/cm3
Boiling Point 264.1±35.0 °C at 760 mmHg
Melting Point 45-47°C
Molecular Formula C5H2ClN3
Molecular Weight 139.542
Flash Point 113.5±25.9 °C
Exact Mass 138.993729
PSA 49.57000
LogP 0.73
Vapour Pressure 0.0±0.5 mmHg at 25°C
Index of Refraction 1.568

 MSDS

Name: 3-Chloropyrazine-2-carbonitrile 95+% Material Safety Data Sheet
Synonym: 3-Chloro-2-cyanopyrazin
CAS: 55557-52-3
Section 1 - Chemical Product MSDS Name:3-Chloropyrazine-2-carbonitrile 95+% Material Safety Data Sheet
Synonym:3-Chloro-2-cyanopyrazin

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
55557-52-3 3-Chloropyrazine-2-carbonitrile 95+% 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.

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# 55557-52-3: 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: tan
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 45 - 47 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: C5H2ClN3
Molecular Weight: 140

Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Not available.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Reducing agents, 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# 55557-52-3 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
3-Chloropyrazine-2-carbonitrile - 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: NITRILES, SOLID, TOXIC, N.O.S.*
Hazard Class: 6.1
UN Number: 3276
Packing Group: III
IMO
Shipping Name: NITRILES, TOXIC, N.O.S.
Hazard Class: 6.1
UN Number: 3276
Packing Group: III
RID/ADR
Shipping Name: NITRILES, TOXIC, N.O.S.
Hazard Class: 6.1
UN Number: 3276
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# 55557-52-3: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 55557-52-3 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 55557-52-3 is not listed on the TSCA inventory.
It is for research and development use only.


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
RIDADR 3276
HS Code 2933990090

 Customs

HS Code 2933990090
Summary 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

2-Pyrazinecarbonitrile, 3-chloro-
3-cyano-2-chloropyrazine
3-chloro-2-cyanopyrazine
MFCD00219653
3-Chloropyrazine-2-carbonitrile
chlorocyanopyrazine
3-chlorpyrazin-2-carbonitril
3-Chloro-2-pyrazinecarbonitrile
2-Chloro-3-cyanopyrazine
2-Chloro-3-cyannopyrazine
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