2H-1-Benzopyran-2-one,5,7-dimethyl-

Modify Date: 2025-09-02 23:13:08

2H-1-Benzopyran-2-one,5,7-dimethyl- Structure
2H-1-Benzopyran-2-one,5,7-dimethyl- structure
 Common Name 2H-1-Benzopyran-2-one,5,7-dimethyl-
CAS Number 14002-99-4 Molecular Weight 174.19600
Density 1.164g/cm3 Boiling Point 325.7ºC at 760mmHg
Molecular Formula C11H10O2 Melting Point N/A
MSDS N/A Flash Point 134.4ºC

 Names

Name 5,7-dimethylchromen-2-one
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.164g/cm3
Boiling Point 325.7ºC at 760mmHg
Molecular Formula C11H10O2
Molecular Weight 174.19600
Flash Point 134.4ºC
Exact Mass 174.06800
PSA 30.21000
LogP 2.40980
Vapour Pressure 0.000226mmHg at 25°C
Index of Refraction 1.574

 Safety Information

HS Code 2932209090

 Synthetic Route

3,5-Dimethylphenol structure

3,5-Dimethylphenol

CAS#:108-68-9

Propiolic acidd structure

Propiolic acidd

CAS#:471-25-0

~86%

2H-1-Benzopyran-2-one,5,7-dimethyl- Structure

2H-1-Benzopyran...

CAS#:14002-99-4

Literature: Kutubi, Shahajahan; Hashimoto, Takuya; Kitamura, Tsugio Synthesis, 2011 , # 8 art. no. F16111SS, p. 1283 - 1289
acrylic acid methyl ester structure

acrylic acid me...

CAS#:292638-85-8

3,5-Dimethylphenol structure

3,5-Dimethylphenol

CAS#:108-68-9

~68%

2H-1-Benzopyran-2-one,5,7-dimethyl- Structure

2H-1-Benzopyran...

CAS#:14002-99-4

Literature: Sharma, Upendra; Naveen, Togati; Maji, Arun; Manna, Srimanta; Maiti, Debabrata Angewandte Chemie - International Edition, 2013 , vol. 52, # 48 p. 12669 - 12673 Angew. Chem., 2013 , vol. 125, # 48 p. 12901 - 12905
(±)-Malic Acid structure

(±)-Malic Acid

CAS#:617-48-1

3,5-Dimethylphenol structure

3,5-Dimethylphenol

CAS#:108-68-9

~73%

2H-1-Benzopyran-2-one,5,7-dimethyl- Structure

2H-1-Benzopyran...

CAS#:14002-99-4

Literature: Bratulescu, George Synthesis, 2008 , # 18 art. no. Z23607SS, p. 2871 - 2873
3-(2-hydroxy-4,6-dimethylphenyl)propynoic acid structure

3-(2-hydroxy-4,...

CAS#:77037-41-3

~%

2H-1-Benzopyran-2-one,5,7-dimethyl- Structure

2H-1-Benzopyran...

CAS#:14002-99-4

Literature: Costa, Ana M. B. S. R. C. S.; Dean, Francis M.; Jones, Michael A.; Smith, Dennis A.; Varma, Rajender S. Journal of the Chemical Society, Chemical Communications, 1980 , # 24 p. 1224 - 1226
4,6-dimethylbenzofuran-2-carboxylic acid structure

4,6-dimethylben...

CAS#:77037-40-2

~%

2H-1-Benzopyran-2-one,5,7-dimethyl- Structure

2H-1-Benzopyran...

CAS#:14002-99-4

Literature: Costa, Ana M. B. S. R. C. S.; Dean, Francis M.; Jones, Michael A.; Varma, Rajender S. Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1985 , p. 799 - 808
(E)-3-(4-Methoxyphenyl)acrylic acid structure

(E)-3-(4-Methox...

CAS#:943-89-5

3,5-Dimethylphenol structure

3,5-Dimethylphenol

CAS#:108-68-9

~0%

2H-1-Benzopyran-2-one,5,7-dimethyl- Structure

2H-1-Benzopyran...

CAS#:14002-99-4

5,7-dimethyl-4-(4-methoxyphenyl)-3,4-dihydrobenzopyran-2-one structure

5,7-dimethyl-4-...

CAS#:85903-47-5

Literature: Chenault, Jacques; Dupin, Jean-Francois E. Heterocycles, 1983 , vol. 20, # 3 p. 437 - 443
methylpropiolate structure

methylpropiolate

CAS#:922-67-8

3,5-Dimethylphenol structure

3,5-Dimethylphenol

CAS#:108-68-9

~%

2H-1-Benzopyran-2-one,5,7-dimethyl- Structure

2H-1-Benzopyran...

CAS#:14002-99-4

Literature: Liao, Yuan; Wang, Binghe Bioorganic and Medicinal Chemistry Letters, 1999 , vol. 9, # 13 p. 1795 - 1800
N/A structure

N/A

CAS#:300767-05-9

~%

2H-1-Benzopyran-2-one,5,7-dimethyl- Structure

2H-1-Benzopyran...

CAS#:14002-99-4

Diethylamine structure

Diethylamine

CAS#:109-89-7

Literature: Liao; Hendrata; Sung Yong Bae; Wang Chemical and Pharmaceutical Bulletin, 2000 , vol. 48, # 8 p. 1138 - 1147
2-[(Z)-2-(benzylmethylcarbamoyl)vinyl]-3,5-dimethylphenyl acetate structure

2-[(Z)-2-(benzy...

CAS#:300767-04-8

~%

2H-1-Benzopyran-2-one,5,7-dimethyl- Structure

2H-1-Benzopyran...

CAS#:14002-99-4

N-Methylbenzylamine structure

N-Methylbenzylamine

CAS#:103-67-3

Literature: Liao; Hendrata; Sung Yong Bae; Wang Chemical and Pharmaceutical Bulletin, 2000 , vol. 48, # 8 p. 1138 - 1147

 Customs

HS Code 2932209090
Summary 2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

5,7-Dimethylcoumarin
5,7-dimethyl-2H-chromen-2-one
5,7-dimethyl-2H-1-benzopyran-2-one
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