3,4-dihydro-4-methyl-2H-pyran

Modify Date: 2025-08-31 12:16:00

3,4-dihydro-4-methyl-2H-pyran Structure
3,4-dihydro-4-methyl-2H-pyran structure
Common Name 3,4-dihydro-4-methyl-2H-pyran
CAS Number 2270-61-3 Molecular Weight 98.14300
Density 0.885g/cm3 Boiling Point 117.5ºC at 760mmHg
Molecular Formula C6H10O Melting Point N/A
MSDS N/A Flash Point 17.3ºC

 Names

Name 4-methyl-3,4-dihydro-2H-pyran
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.885g/cm3
Boiling Point 117.5ºC at 760mmHg
Molecular Formula C6H10O
Molecular Weight 98.14300
Flash Point 17.3ºC
Exact Mass 98.07320
PSA 9.23000
LogP 1.55650
Vapour Pressure 20.7mmHg at 25°C
Index of Refraction 1.436

 Safety Information

HS Code 2932999099

 Synthetic Route

~4%

3,4-dihydro-4-methyl-2H-pyran Structure

3,4-dihydro-4-m...

CAS#:2270-61-3

Literature: Guagnano, Vito; Lardicci, Luciano; Malanga, Corrado; Menicagli, Rita Tetrahedron Letters, 1998 , vol. 39, # 14 p. 2025 - 2026

~%

3,4-dihydro-4-methyl-2H-pyran Structure

3,4-dihydro-4-m...

CAS#:2270-61-3

Literature: Parham; Holmquist Journal of the American Chemical Society, 1951 , vol. 73, p. 913

~56%

3,4-dihydro-4-methyl-2H-pyran Structure

3,4-dihydro-4-m...

CAS#:2270-61-3

Literature: Ibatullin, U. G.; Petrushina, T. F.; Akhmadeeva, A. A.; Safarov, M. G. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1985 , vol. 21, # 3 p. 262 - 264 Khimiya Geterotsiklicheskikh Soedinenii, 1985 , vol. 21, # 3 p. 318 - 320

~%

3,4-dihydro-4-methyl-2H-pyran Structure

3,4-dihydro-4-m...

CAS#:2270-61-3

Literature: Wildman, Tanya; Kocienski, Philip J.; Narquizian, Robert; Whittingham, William G. Synthesis, 2002 , # 3 p. 393 - 398

~%

3,4-dihydro-4-methyl-2H-pyran Structure

3,4-dihydro-4-m...

CAS#:2270-61-3

Literature: Wildman, Tanya; Kocienski, Philip J.; Narquizian, Robert; Whittingham, William G. Synthesis, 2002 , # 3 p. 393 - 398

~65%

3,4-dihydro-4-methyl-2H-pyran Structure

3,4-dihydro-4-m...

CAS#:2270-61-3

Literature: Ibatullin, U. G.; Petrushina, T. F.; Akhmadeeva, A. A.; Safarov, M. G. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1985 , vol. 21, # 3 p. 262 - 264 Khimiya Geterotsiklicheskikh Soedinenii, 1985 , vol. 21, # 3 p. 318 - 320

~77%

3,4-dihydro-4-methyl-2H-pyran Structure

3,4-dihydro-4-m...

CAS#:2270-61-3

Literature: Ibatullin, U. G.; Petrushina, T. F.; Akhmadeeva, A. A.; Safarov, M. G. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1985 , vol. 21, # 3 p. 262 - 264 Khimiya Geterotsiklicheskikh Soedinenii, 1985 , vol. 21, # 3 p. 318 - 320

~%

3,4-dihydro-4-methyl-2H-pyran Structure

3,4-dihydro-4-m...

CAS#:2270-61-3

Literature: Union Carbide Corp. Patent: US2858322 , 1956 ;

 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

2H-Pyran,3,4-dihydro-4-methyl
3,4-Dihydro-4-methyl-2H-pyran
4-Methyl-2,3-dihydropyran
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