2(3H)-Furanone,3-bromodihydro-5-methyl-

Modify Date: 2025-08-25 22:39:56

2(3H)-Furanone,3-bromodihydro-5-methyl- Structure
2(3H)-Furanone,3-bromodihydro-5-methyl- structure
Common Name 2(3H)-Furanone,3-bromodihydro-5-methyl-
CAS Number 25966-39-6 Molecular Weight 179.01200
Density 1.618g/cm3 Boiling Point 254.1ºC at 760mmHg
Molecular Formula C5H7BrO2 Melting Point N/A
MSDS Chinese USA Flash Point 107.5ºC
Symbol GHS05 GHS07
GHS05, GHS07
Signal Word Danger

 Names

Name 3-bromo-5-methyloxolan-2-one
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.618g/cm3
Boiling Point 254.1ºC at 760mmHg
Molecular Formula C5H7BrO2
Molecular Weight 179.01200
Flash Point 107.5ºC
Exact Mass 177.96300
PSA 26.30000
LogP 1.08530
Vapour Pressure 0.0175mmHg at 25°C
Index of Refraction n20/D 1.493(lit.)

 Safety Information

Symbol GHS05 GHS07
GHS05, GHS07
Signal Word Danger
Hazard Statements H314-H335
Precautionary Statements P261-P280-P305 + P351 + P338-P310
Personal Protective Equipment Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes C
Risk Phrases R34;R36/37
Safety Phrases S26;S27;S28;S45;S36/S37/S39
RIDADR UN 3265 8/PG 2
Packaging Group III
HS Code 2932209090

 Synthetic Route

~60%

2(3H)-Furanone,3-bromodihydro-5-methyl- Structure

2(3H)-Furanone,...

CAS#:25966-39-6

Literature: Synlett, , # 17 art. no. G24105ST, p. 2648 - 2652

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2(3H)-Furanone,3-bromodihydro-5-methyl- Structure

2(3H)-Furanone,...

CAS#:25966-39-6

Literature: US2530348 , ; US2557779 , ; Nippon Kagaku Zasshi, , vol. 80, p. 924,933 Chem.Abstr., , p. 4529

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2(3H)-Furanone,3-bromodihydro-5-methyl- Structure

2(3H)-Furanone,...

CAS#:25966-39-6

Literature: Journal of Heterocyclic Chemistry, , vol. 17, # 9 p. 1389 - 1392

 Customs

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

 Articles1

More Articles
Synthesis of azepino[4,5-b]indolones via an intermolecular radical oxidative substitution of N-Boc tryptamine.

Org. Biomol. Chem. 7(7) , 1388-1396, (2009)

A two-step protocol for the synthesis of azepino[4,5-b]indolone derivatives featuring a xanthate radical oxidative aromatic substitution on the N-Boc protected tryptamine, using dilauroyl peroxide (DL...

 Synonyms

EINECS 247-380-6
2-bromo-2-methylbutyrolactone
MFCD00005388
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