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

Modify Date: 2024-01-02 14:45:31

3,4-Dihydro-2-ethoxy-2H-pyran Structure
3,4-Dihydro-2-ethoxy-2H-pyran structure
Common Name 3,4-Dihydro-2-ethoxy-2H-pyran
CAS Number 103-75-3 Molecular Weight 128.16900
Density 0.957 g/mL at 25 °C(lit.) Boiling Point 42 °C16 mm Hg(lit.)
Molecular Formula C7H12O2 Melting Point -100ºC
MSDS Chinese USA Flash Point 76 °F

 Names

Name 2-ethoxy-3,4-dihydro-2h-pyran
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.957 g/mL at 25 °C(lit.)
Boiling Point 42 °C16 mm Hg(lit.)
Melting Point -100ºC
Molecular Formula C7H12O2
Molecular Weight 128.16900
Flash Point 76 °F
Exact Mass 128.08400
PSA 18.46000
LogP 1.67310
Vapour Pressure 0.811mmHg at 25°C
Index of Refraction n20/D 1.439(lit.)
Storage condition 2-8°C

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UP8925000
CHEMICAL NAME :
2H-Pyran, 2-ethoxy-3,4-dihydro-
CAS REGISTRY NUMBER :
103-75-3
BEILSTEIN REFERENCE NO. :
0109855
LAST UPDATED :
199709
DATA ITEMS CITED :
6
MOLECULAR FORMULA :
C7-H12-O2
MOLECULAR WEIGHT :
128.19
WISWESSER LINE NOTATION :
T6O BUTJ FO2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
Open irritation test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
REFERENCE :
AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 23,95,1962
TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration into the eye
SPECIES OBSERVED :
Rodent - rabbit
REFERENCE :
UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 7/15/1971 ** ACUTE TOXICITY DATA **
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
6160 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 7/15/1971
TYPE OF TEST :
LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
8000 ppm/4H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 23,95,1962
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
3560 uL/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 7/15/1971

 Safety Information

Hazard Codes Xi: Irritant;
Risk Phrases R10
Safety Phrases S26
RIDADR UN 3271 3/PG 3
WGK Germany 2
RTECS UP8925000
Packaging Group III
Hazard Class 3.2
HS Code 2932999099

 Customs

HS Code 2932999099
Summary 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

2-ethoxy-(2H)-3,4-dihydropyran
EINECS 203-141-8
ethoxy-2 dihydro-3,4,(2H)-pyranne
6-ethoxy-2,3-dihydropyran
2-Ethoxydihydropyran
2-Ethoxypyran
2-Ethoxy-2,3-dihydro(4H)pyran
MFCD00006561
2-Ethoxy-3,4-dihydro-2H-pyran
3,4-dihydro-2-ethoxy-2H-pyran
2-Ethoxy-3,4-dihydropyran
2H-Pyran,2-ethoxy-3,4-dihydro
2-Ethoxy-3,4-dihydro-2-pyran
ETHOXYDIHYDROPYRAN