Agent Name

3,4-Dihydro-2-methoxy-2H-pyran

CAS Number

4454-05-1

Formula

C6-H10-O2

Major Category

Other Classes

Synonyms

2,3-Dihydro-2-methoxy(4H)pyran; 2-Methoxy-3,4-dihydro-2H-pyran; 2H-Pyran, 3,4-dihydro-2-methoxy-; [ChemIDplus] 2-Methoxy-2,3-dihydro-4H-pyran; MDP; [OECD SIDS: IUCLID Data Set] UN1993

Category

Ethers, Other

Description

Colorless to yellow liquid with an ether-like odor; [OECD SIDS: IUCLID Data Set] Clear faintly yellow liquid; [Sigma-Aldrich MSDS]

Sources/Uses

Used in chemical syntheses; [OECD SIDS: IUCLID Data Set] Used as an intermediate; [ToxPlanet: ECHA REACH Registrations]

Comments

A mild eye and moderate skin irritant; Causes changes in trachea or bronchi, dyspnea, and dermatitis in dermal lethal-dose studies of rabbits; Causes lachrymation, altered sleep time (including change in righting reflex), and pleural effusion in inhalation lethal-concentration studies of rats; [RTECS] A skin and eye irritant; [ToxPlanet: ECHA REACH Registrations] See "3,4-Dihydropyran" and "Ethoxydihydropyran."

Exposure Assessment
Lethal Concentration

LCLo (rat) = 8,044 ppm/1hr

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Flammable liquid, n.o.s."

Links to Other NLM Databases
Toxicity Information

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Chemical Information

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Related Information in HazMap
Other Information

No other related information on this agent was found.