2,3-DIHYDROPYRAN

heterocyclic 

3,4-DIHYDRO-2H-PYRAN; DIHYDROPYRAN; DELTA-DIHYDROPYRAN; 2H-3,4-DIHYDROPYRAN; 3,4-DIHYDROPYRAN; UN 2376; 2H-PYRAN, 3,4-DIHYDRO-; 2,3-DIHYDRO-GAMMA-PYRAN; 2,3-DIHYDRO-4H-PYRAN; 3,4-DIHYDRO-2(H)-PYRAN; 5,6-DIHYDRO-4H-PYRAN; DIHYDRO-2H-PYRAN; PYRAN, DIHYDRO-

Emergency Overview 

Color:  colorless 

Change in color: Not available

Physical Form: volatile liquid

Odor:  sweet odor 

Health Hazards:  respiratory tract irritation, skin irritation, eye irritation 

Physical Hazards:  Extremely flammable liquid and vapor. Vapor may cause flash fire. 

Short Term:  irritation, difficulty breathing 

Long Term:  no information is available 

Short Term:  irritation 

Long Term:  no information is available 

Short Term:  irritation, blurred vision 

Long Term:  no information is available 

Short Term:  sore throat, nausea, stomach pain 

Long Term:  no information is available 

If adverse effects occur, remove to uncontaminated area. Give artificial respiration if not breathing. Get immediate medical attention. 

Wash skin with soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical attention, if needed. Thoroughly clean and dry contaminated clothing and shoes before reuse. 

Flush eyes with plenty of water for at least 15 minutes. Then get immediate medical attention. 

If a large amount is swallowed, get medical attention. 

See Section 9 for Flammability Properties 

Severe fire hazard. Vapor/air mixtures are explosive above flash point. The vapor is heavier than air. Vapors or gases may ignite at distant ignition sources and flash back. 

alcohol-resistant foam, carbon dioxide, regular dry chemical, water, alcohol-resistant foam Large fires: Use alcohol-resistant foam or flood with fine water spray. 

Move container from fire area if it can be done without risk. Cool containers with water spray until well after the fire is out. Stay away from the ends of tanks. For fires in cargo or storage area: Cool containers with water from unmanned hose holder or monitor nozzles until well after fire is out. If this is impossible then take the following precautions: Keep unnecessary people away, isolate hazard area and deny entry. Let the fire burn. Withdraw immediately in case of rising sound from venting safety device or any discoloration of tanks due to fire. For tank, rail car or tank truck: Evacuation radius: 800 meters (1/2 mile). 

Avoid heat, flames, sparks and other sources of ignition. Remove sources of ignition. Stop leak if possible without personal risk. Reduce vapors with water spray. Small spills: Absorb with sand or other non-combustible material. Collect spilled material in appropriate container for disposal. Large spills: Dike for later disposal. Keep unnecessary people away, isolate hazard area and deny entry. Stay upwind and keep out of low areas. 

Store and handle in accordance with all current regulations and standards. 

Component Exposure Limits 

Biological limit value 

Provide local exhaust ventilation system. Ventilation equipment should be explosion-resistant if explosive concentrations of material are present. Ensure compliance with applicable exposure limits. 

Eyes/Face Wear splash resistant safety goggles. Provide an emergency eye wash fountain and quick drench shower in the immediate work area. 

Wear appropriate chemical resistant clothing. 

Wear appropriate chemical resistant gloves. 

Under conditions of frequent use or heavy exposure, respiratory protection may be needed. Respiratory protection is ranked in order from minimum to maximum. Consider warning properties before use. Any chemical cartridge respirator with organic vapor cartridge(s). Any chemical cartridge respirator with a full facepiece and organic vapor cartridge(s). Any air-purifying respirator with a full facepiece and an organic vapor canister. For Unknown Concentrations or Immediately Dangerous to Life or Health - Any supplied-air respirator with a full facepiece that is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained breathing apparatus operated in pressure-demand or other positive-pressure mode. Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode. 

alcohol 

Stable at normal temperatures and pressure. 

Avoid heat, flames, sparks and other sources of ignition. Containers may rupture or explode if exposed to heat. 

oxidizing materials 

2,3-DIHYDROPYRAN: OXIDIZING MATERIALS: Vigorous reaction

miscellaneous decomposition products 

Thermal decomposition products: miscellaneous decomposition products.

Will not polymerize. 

Component Analysis - LD50/LC50 

Component Carcinogenicity

None of this product's components are listed by ACGIH, IARC, NTP, DFG or OSHA

2,3-DIHYDROPYRAN Inhalation may irritate the respiratory tract and may cause sore throat, coughing, and shortness of breath.

2,3-DIHYDROPYRAN No data available.

2,3-DIHYDROPYRAN It may cause redness and pain.

2,3-DIHYDROPYRAN No data available.

2,3-DIHYDROPYRAN Exposure may cause redness, pain, and blurred vision.

2,3-DIHYDROPYRAN No data available.

2,3-DIHYDROPYRAN Ingestion may cause sore throat, abdominal pain, and nausea.

2,3-DIHYDROPYRAN No data available.

Component Analysis - Aquatic Toxicity 

Dispose in accordance with all applicable regulations. 

Component Waste Numbers 

ADR Tunnel Code Restrictions 

Component Marine Pollutants (IMDG) 

SARA Section 311/312 (40 CFR 370 Subparts B and C) 

Not listed under California Proposition 65 

Germany Water Classification 

The listed component(s) of this material have been checked for country-specific published classifications according to the Globally Harmonized System of Classification and Labeling (GHS). The results of the queries are displayed below. Please see the individual country listings, as additional interpretations or reference information may be available. For a reference list of H- or P-statements, please visit ChemADVISOR’s website at http://www.chemadvisor.com/product-resources/26-pure-substance-and-mixture-databases/247-ghs-hazard-and-physical-statements 

Australia GHS Classifications 

European Union GHS Classifications 

Indonesia GHS Classifications 

Japan GHS Classifications 

Japan GHS Labeling Information 

Korea GHS Classifications 

Korea GHS Labeling Information 

New Zealand GHS Classifications 

New Zealand GHS Labeling Information 

South Africa GHS Classifications 

Taiwan GHS Classifications 

No classification assigned. 

ACGIH - American Conference of Governmental Industrial Hygienists; ADR - European Road Transport; AU - Australia; BOD - Biochemical Oxygen Demand; C - Celsius; CA - Canada; CAS - Chemical Abstracts Service; CERCLA - Comprehensive Environmental Response, Compensation, and Liability Act; CN - China; CPR - Controlled Products Regulations; DFG - Deutsche Forschungsgemeinschaft; DOT - Department of Transportation; DSL - Domestic Substances List; EEC - European Economic Community; EINECS - European Inventory of Existing Commercial Chemical Substances; EPA - Environmental Protection Agency; EU - European Union; F - Fahrenheit; IARC - International Agency for Research on Cancer; IATA - International Air Transport Association; ICAO - International Civil Aviation Organization; IDL - Ingredient Disclosure List; IDLH - Immediately Dangerous to Life and Health; IMDG - International Maritime Dangerous Goods; JP - Japan; Kow - Octanol/water partition coefficient; KR - Korea; LEL - Lower Explosive Limit; LOLI - List Of LIsts™ - ChemADVISOR’s Regulatory Database; MAK - Maximum Concentration Value in the Workplace; MEL - Maximum Exposure Limits; NFPA - National Fire Protection Agency; NIOSH - National Institute for Occupational Safety and Health; NJTSR - New Jersey Trade Secret Registry; NTP - National Toxicology Program; NZ - New Zealand; OSHA - Occupational Safety and Health Administration; PH - Philippines; RCRA - Resource Conservation and Recovery Act; RID - European Rail Transport; RTECS - Registry of Toxic Effects of Chemical Substances®; SARA - Superfund Amendments and Reauthorization Act; STEL - Short-term Exposure Limit; TDG - Transportation of Dangerous Goods; TSCA - Toxic Substances Control Act; TWA - Time Weighted Average; UEL - Upper Explosive Limit; US - United States 

Reasonable care has been taken in the preparation of this information; however, the manufacturer makes no warranty whatsoever including the warranty of merchantability, expressed or implied, with respect to this information. The manufacturer makes no representations and assumes no liability for any direct, incidental, consequential, or other such damages resulting from its use or misuse. 

Supplier gives no warranty whatsoever, including the warranties of merchantability or of fitness for a particular purpose. Any product purchased is sold on the assumption the purchaser shall determine the quality and suitability of the product. Supplier expressly disclaims any and all liability for incidental, consequential or any other damages arising out of the use or misuse of this product. No information provided shall be deemed to be a recommendation to use any product in conflict with any existing patent rights. THIS SDS IS TO BE UTILIZED SOLELY AS A REFERENCE DOCUMENT AND IT IS NOT TO BE USED TO SATISFY THE DISTRIBUTION REQUIREMENTS OF OSHA'S HAZARD COMMUNICATION STANDARD (HCS) NOR CANADA'S CONTROLLED PRODUCT REGULATION (CPR). Read the Safety Data Sheet before handling product. Use of any information contained herein is provided at the reader's own risk and thus independent judgment by trained professionals must be utilized at all times. 

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