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Introduction	Products	Service	Address	今天是：

Products

2，3—Dihydrofuran

Name	2，3-dihydrofuran			Structure
Formula	C4H6O	Boiling point	54-55℃

Density	0.927 g/ml	Refracted rate	1.4230	Assay	≥99.0% ,Moisture ≤ 0.3% ，THF ≤ 0.3%
Flash Point	-16℃	CAS	1191-99-7	Assay	≥99.0% ,Moisture ≤ 0.3% ，THF ≤ 0.3%
Apperance	colorless liquid	Package	180kg	Usage	Medicine Intermedia

2，5—Dihydrofuran

Name	2，5-dihydrofuran			Structure
Formula	C4H6O	Boiling point	66-67℃

Density	0.927 g/ml	Refracted rate	1.4230	Assay	≥97.0% ,Moisture ≤ 0.3% ，THF ≤ 0.3%
Flash point	-24℃	CAS	1708-29-8	Assay	≥97.0% ,Moisture ≤ 0.3% ，THF ≤ 0.3%
Apperance	colorless liquid	Package	180kg	Usage	Medicine Intermedia

3,4-2H-Dihydropyran

Name	3，4-2H-dihydropyran			Structure
Formula	C5H8O	Boiling point	86℃

Density	0.9222 g/ml	Refracted rate	1.4410	Assay	≥98.0% ,Moisture ≤ 0.3% ，Tetrahydropyran ≤ 1.5%
Flash point	-15℃	CAS	110-87-2	Assay	≥98.0% ,Moisture ≤ 0.3% ，Tetrahydropyran ≤ 1.5%
Apperance	colorless liquid	package	160kg	Usage	Medicine intermedia

Tetrahydropyran

Name	tetrahydropyran			Structure
	C5H10O	Boiling point	88℃

Density				Assay	≥99.0% ,Moisture≤ 0.2% ，Dihyropyran ≤ 1.0%
Flash Point	℃	CAS	142-68-7	Assay	≥99.0% ,Moisture≤ 0.2% ，Dihyropyran ≤ 1.0%
Apperance	colorless liquid	package	160kg	Usage	Medicine Intermedia

4-Hydroxycoumarin?

Name	4-Hydroxycoumarin			Structure
Formula	C9H6O3
Molecular weight	162.14	Melting point	210-215 °C
CAS	1076-38-6			Assay	>98%
				Assay	>98%
Apperance	white Powder	Package

2-0(1,2-benzisoxazol-3-yl)acetic acid

Name	2-0(1,2-benzisoxazol-3-yl)acetic acid			Structure
Formula	C9H7NO3
Molecular weight	177	Melting point	123-126℃
CAS	4865-84-3			Assay	>99%
				Assay	>99%
Apperance	white Powder	Package

Chlorotributylstannane

Name				Structure
formula		Boiling point

Density		Refracted rate		Assay	≥97.0% ,
Flash Point		CAS		Assay	≥97.0% ,
Apperance		Package		Usage

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