2H-Pyran-2-carboxaldehyde,3,4-dihydro-2,5-dimethyl-

Modify Date: 2024-01-10 09:21:14

2H-Pyran-2-carboxaldehyde,3,4-dihydro-2,5-dimethyl- Structure
2H-Pyran-2-carboxaldehyde,3,4-dihydro-2,5-dimethyl- structure
Common Name 2H-Pyran-2-carboxaldehyde,3,4-dihydro-2,5-dimethyl-
CAS Number 1920-21-4 Molecular Weight 140.18000
Density 1.047g/cm3 Boiling Point 201.4ºC at 760 mmHg
Molecular Formula C8H12O2 Melting Point N/A
MSDS N/A Flash Point 74.1ºC

 Names

Name 2,5-dimethyl-3,4-dihydropyran-2-carbaldehyde
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.047g/cm3
Boiling Point 201.4ºC at 760 mmHg
Molecular Formula C8H12O2
Molecular Weight 140.18000
Flash Point 74.1ºC
Exact Mass 140.08400
PSA 26.30000
LogP 1.65820
Vapour Pressure 0.308mmHg at 25°C
Index of Refraction 1.512

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UP7875000
CHEMICAL NAME :
1,4-Pyran, 2,3-dihydro-2,5-dimethyl-2-formyl-
CAS REGISTRY NUMBER :
1920-21-4
BEILSTEIN REFERENCE NO. :
0114546
LAST UPDATED :
199806
DATA ITEMS CITED :
3
MOLECULAR FORMULA :
C8-H12-O2
MOLECULAR WEIGHT :
140.20
WISWESSER LINE NOTATION :
T6O BUTJ C1 FVH F1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
REFERENCE :
85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,803,1986
TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration into the eye
SPECIES OBSERVED :
Rodent - rabbit
REFERENCE :
85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,803,1986 ** ACUTE TOXICITY DATA **
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
2460 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AMIHBC AMA Archives of Industrial Hygiene and Occupational Medicine. (Chicago, IL) V.2-10, 1950-54. For publisher information, see AEHLAU. Volume(issue)/page/year: 10,61,1954

 Synonyms

2H-Pyran-2-carboxaldehyde,3,4-dihydro-2,5-dimethyl
Methacrylaldehyde dimer
2,5-dimethyl-3,4-dihydro-2H-pyran-2-carbaldehyde
3,4-dihydro-2,5-dimethyl-2H-pyran-2-carboxaldehyde
3,4-Dihydro-2,5-dimethyl-2H-pyran-2-carbaldehyde
Methacrolein dimer
1,4-Pyran,2,3-dihydro-2,5-dimethyl-2-formyl
2,3-Dihydro-2,5-dimethyl-2-formyl-1,4-pyran
EINECS 217-647-1
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