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CAS: 108-29-2
分子式: C5H8O2
分子量: 100.12
沸点: 207-208℃
熔点: -31-208℃
中文名称: 
4-戊内酯
γ-戊内酯
3-甲基丁内酯
咖吗-戊内酯
英文名称: 
(±)-5-Methyl-dihydro-furan-2-one
5-methyltetrahydro-2-furanone
5-methyl-dihydro-furan-2-one
5-Methyl tetrahydrofuran-2-one
(R,S)-5-Methyl-dihydro-furan-2-one
5-Methyloxolan-2-one
γ-Valerolactone
dihydro-5-methyl-2(3H)-Furanone
dihydro-5-methyl-2(3h)-furanon
4-hydroxypentanoic acid lactone
4-hydroxyvaleric acid lactone
4-methyl-gamma-butyrolactone
4-pentanolide
4-valerolactone
gamma-methyl-gamma-butyrolactone
gamma-pentalactone
c-valerolactone
gamma-valerolactone
gamma-valerolakton
2(3H)-Furanone,dihydro-5-methyl-
Dihydro-5-methyl-2(3H)-furanone
-Valerolac-tone
-Methylbutyrolactone
展开更多英文名
性质描述: 无色至微黄色液体。凝固点-31℃,沸点205-206.5℃,83-84℃(1.73kPa),相对密度(25/25℃)1.0578,折光率(nD25)1.4301。能与水、许多有机溶剂、树脂和蜡等混溶。10%水溶液的pH为4.2。
生产方法: 由不饱和羧酸通过闭环反应来合成,例如乙酰乙酸与硫酸共热,或乙酰丙酸在镍、铜等催化剂存在下加氢。
用途: γ-戊内酯有较强的反应能力,可用作树脂溶剂及各种有关化合物的中间体。也用作润滑剂、增塑剂、非离子型表面活性剂的胶凝剂、加铅汽油的内酯类添加剂,用于纤维素酯和合成纤维的染色。γ-戊内酯具有香兰素和椰子香味。我国GB2760-86规定为允许使用的食用香料。主要用以配制桃、椰子、香草等型香精。
推荐供应商
货号品牌产品名称规格包装、参考价格详情
V742996MACKLINγ-戊内酯Standard for GC, ≥99.8%(GC)128元/5g;   展开
储存:室温
状态:液体
V820420MACKLINγ-戊内酯98%27元/25g;   42元/100g;   190元/500g;   860元/2.5kg;   3407元/10kg;   2200元/12X500g;   展开
储存:室温
状态:无色液体
折射率:n20/D 1.432(lit.)
V0007TCIγ-Valerolactone>98.0%(GC)150元/25G;   375元/100G;   1130元/500G;   展开

基本信息

纯度/分析方法>98.0%(GC)
分子式/分子量C5H8O2 = 100.12
外观与形状(20℃)液体
Reaxys-RN80420
PubChem物质ID87577807
SDBS (AIST Spectral DB)2408
MDL编号MFCD00005400

技术规格

AppearanceColorless to Almost colorless clear liquid
Purity(GC)min. 98.0 %

物性(参考值)

熔点-31 ℃
沸点207 ℃
闪点102 ℃
比重1.06
折射率1.43
水溶性完全混溶
溶解性(可与之混溶)

安全信息

信号词警告
危险性说明H316 : 造成轻微皮肤刺激。
防范说明P332 + P313 : 如发生皮肤刺激:求医/就诊。

相关法规

RTECS#LU3580000
340508J&Kγ-Valerolactone98%118元/25ML;   357元/100ML;   1331元/500ML;   展开

基本信息

分子式C5H8O2
分子量100.12
熔点-31
沸点207-208
闪点96
密度1.05
折光率(n20D)1.4310 - 1.4340
MDL编码MFCD00005400
Beilstein80420
EINECS 编号203-569-5

安全信息

图形或危害标志
提示语Warning
危险说明H315
H319
H335
防范说明P261
P280
P302+P352
P305+P351+P338
WGK2
RTECSLU3580000
TSCA
A18872Alfa Aesargamma-Valerolactone98%559元/25g;   1395元/100g;   6119元/500g;   展开

应用
It finds it application as a food additive that is used to improve the taste or odor of a food. It is also used as toiletry fragrances.

备注
Store away from oxidizing agents. Keep the container tightly closed and place it in a cool, dry and well ventilated condition.

基本信息

MDL
MFCD00005400

EINECS
203-569-5

分子式
C5H8O2

分子量
100.12

熔点
-31°

沸点
207-208°

闪点
81°(178°F)

密度
1.052

折射率
1.4330

灵敏度
Ambient temperatures.

形态
Liquid

溶解性
Fully miscible in water (9.381e+004 mg/L @ 25°C (est.)). Soluble in alcohol, fixed oils.

Beilstein
80420

GHS危害和防范说明

Hazard Statements
H227
Combustible liquid.

Precautionary Statements
P210e-P280a-P370+P378a-P403+P235-P501a
Wear protective gloves and eye/face protection.In case of fire: Use for extinction: CO2, powder or water spray.Store in a well-ventilated place. Keep cool.Dispose of contents/container in accordance with local/regional/national/international regulations.

安全信息

RTECS
LU3580000

TSCA

C14079Alfa Aesargamma-Valerolactone98%405元/5ml;   647元/100ml;   2621元/500ml;   展开

基本信息

Ref#
14079

MDL
5400

分子式
C5 H8 O2

分子量
100.12

闪点
96

密度
1.05

W310301Sigma-Aldrichγ-Valerolactone≥99%, FCC, FG404.65元/;   1190.58元/1 KG;   4591.07元/5 KG;   7345.54元/10 KG;   展开

产品说明

一般描述

γ-Valerolactone has been identified as one of the volatile flavor constituents in mango and honey.

包装

10 kg in composite drum
1 kg in poly bottle
5 kg in steel drum

基本信息

经验(实验)分子式C5H8O2
分子量100.12
FEMA编号3103
Beilstein80420
EC 号203-569-5
欧洲委员会编号757
MDL编号MFCD00005400
PubChem化学物质编号24901468
Flavis编号10.013
NACRESNA.21

产品性质

质量水平400
生物来源synthetic
等级FG
Halal
Kosher
agencyfollows IFRA guidelines
meets purity specifications of JECFA
reg. complianceEU Regulation 1223/2009
EU Regulation 1334/2008 & 178/2002
FCC
蒸汽密度3.45 (vs air)
测定≥99%
折射率n20/D 1.432 (lit.)
bp207-208 ℃ (lit.)
82-85 ℃/10 mmHg (lit.)
mp−31 ℃ (lit.)
密度1.05 g/mL at 25 ℃ (lit.)
文件see Safety & Documentation for available documents
性状检查cocoa; woody; herbaceous; sweet; warm
application(s)flavors and fragrances
食品过敏原no known allergens
致敏芳香化合物no known allergens
SMILES stringCC1CCC(=O)O1
InChI1S/C5H8O2/c1-4-2-3-5(6)7-4/h4H,2-3H2,1H3
InChI keyGAEKPEKOJKCEMS-UHFFFAOYSA-N
Gene Informationhuman ... CYP1A2(1544)

安全信息

储存分类代码10 - Combustible liquids
WGKWGK 2
闪点(F)204.8 °F - closed cup
闪点(C)96 ℃ - closed cup
个人防护装备Eyeshields, Gloves, type ABEK (EN14387) respirator filter
918660Sigma-Aldrichγ-ValerolactoneBioRenewable, ≥99%, ReagentPlus®1306.56元/1 L;   2925.06元/2.5 L;   4446.04元/4 L;   展开

产品说明

一般描述

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. γ-Valerolactone (GVL) is a bio-based, fully degradable, non-toxic green solvent and has been aligned with "Safer Solvent and Auxiliaries", "Use of Renewable Feedstocks" and "Design for Degradation". Click here for more information.

法律信息

ReagentPlus is a registered trademark of sigma-aldrich Co. LLC

基本信息

经验(实验)分子式C5H8O2
分子量100.12
Beilstein80420
MDL编号MFCD00005400

产品性质

质量水平100
蒸汽密度3.45 (vs air)
产品线ReagentPlus®
测定≥99%
形式liquid
环保替代产品特性Safer Solvents and Auxiliaries
Use of Renewable Feedstocks
Design for Degradation
Learn more about the Principles of Green Chemistry.
折射率n20/D 1.432 (lit.)
bp207-208 ℃ (lit.)
82-85 ℃/10 mmHg (lit.)
mp−31 ℃ (lit.)
密度1.05 g/mL at 25 ℃ (lit.)
环保替代产品分类Aligned
SMILES stringCC1CCC(=O)O1
InChI1S/C5H8O2/c1-4-2-3-5(6)7-4/h4H,2-3H2,1H3
InChI keyGAEKPEKOJKCEMS-UHFFFAOYSA-N

安全信息

储存分类代码10 - Combustible liquids
WGKWGK 2
闪点(F)204.8 °F - closed cup
闪点(C)96 ℃ - closed cup
W310311Sigma-Aldrichγ-Valerolactonenatural, ≥95%, FG460.69元/ ;   1098.45元/100 g;   4508.94元/500 g;   5988.31元/1 kg;   展开

产品说明

一般描述

Natural occurence: Barley, beef, beer, Swiss cheese, coffee, cocoa, mango, milk, mushroom, peach, pork, tea, soy and tomato
γ-Valerolactone has been identified as one of the volatile flavor constituents in mango and honey.

应用

The sweet, creamy notes of this lactone will enhance coconut, vanilla, caramel, toffee, milk chocolate, and the sweeter dairy flavors like cajeta, milk and whipped cream. Dried fruit flavors like date and fig, and nut flavors like almond and peanut butter are also good destinations for this material.

包装

1 kg in poly bottle
100, 500 g in poly bottle

生化/生理作用

Odor at 1%
Taste at 8-15ppm

基本信息

经验(实验)分子式C5H8O2
分子量100.12
FEMA编号3103
Beilstein80420
EC 号203-569-5
欧洲委员会编号757
MDL编号MFCD00005400
PubChem化学物质编号329830564
Flavis编号10.013
NACRESNA.21

产品性质

质量水平300
等级FG
Kosher
natural
reg. complianceEU Regulation 1334/2008 & 178/2002
蒸汽密度3.45 (vs air)
测定95%
折射率n20/D 1.432 (lit.)
bp207-208 ℃ (lit.)
82-85 ℃/10 mmHg (lit.)
mp−31 ℃ (lit.)
密度1.05 g/mL at 25 ℃ (lit.)
文件see Safety & Documentation for available documents
性状检查cocoa; woody; herbaceous; sweet; warm
application(s)flavors and fragrances
食品过敏原no known allergens
SMILES stringCC1CCC(=O)O1
InChI1S/C5H8O2/c1-4-2-3-5(6)7-4/h4H,2-3H2,1H3
InChI keyGAEKPEKOJKCEMS-UHFFFAOYSA-N

安全信息

储存分类代码10 - Combustible liquids
WGKWGK 2
闪点(F)204.8 °F - closed cup
闪点(C)96 ℃ - closed cup
V403Sigma-Aldrichγ-ValerolactoneReagentPlus®, 99%304.94元/100 G;   467.67元/500 G;   展开

产品说明

一般描述

γ-戊内酯(GVL)天然存在于水果中,经常用作燃料添加剂和食品成分。它主要用于能源和碳基产品的生产。

应用

γ-戊内酯(GVL)可用作绿色溶剂:

  • 利用固体酸催化剂氢型丝光沸石将木质纤维素转换为糠醛。
  • 合成磷脂酰丝氨酸。

包装

100, 500 g in glass bottle

法律信息

ReagentPlus is a registered trademark of sigma-aldrich Co. LLC

基本信息

经验(实验)分子式C5H8O2
分子量100.12
Beilstein80420
EC 号203-569-5
MDL编号MFCD00005400
PubChem化学物质编号24900745

产品性质

质量水平100
蒸汽密度3.45 (vs air)
产品线ReagentPlus®
测定99%
折射率n20/D 1.432 (lit.)
bp207-208 ℃ (lit.)
82-85 ℃/10 mmHg (lit.)
mp−31 ℃ (lit.)
密度1.05 g/mL at 25 ℃ (lit.)
SMILES stringCC1CCC(=O)O1
InChI1S/C5H8O2/c1-4-2-3-5(6)7-4/h4H,2-3H2,1H3
InChI keyGAEKPEKOJKCEMS-UHFFFAOYSA-N
Gene Informationhuman ... CYP1A2(1544)

安全信息

储存分类代码10 - Combustible liquids
WGKWGK 2
闪点(F)204.8 °F - closed cup
闪点(C)96 ℃ - closed cup
个人防护装备Eyeshields, Gloves, type ABEK (EN14387) respirator filter
901053Amethystγ-Valerolactone98%, 试剂级41元/25G;   113元/100G;   380元/500G;   展开

基本信息

分子式C5H8O2
分子量100.12
熔点-31
沸点207-208
闪点96
密度1.05
折光率(n20D)1.4310 - 1.4340
MDL编码MFCD00005400
Beilstein80420
EINECS 编号203-569-5

安全信息

图形或危害标志
提示语Warning
危险说明H315
H319
H335
防范说明P261
P280
P302+P352
P305+P351+P338
WGK2
RTECSLU3580000
TSCA
243089Fluorochem5-Methyldihydrofuran-2(3H)-one95%220元/25g;   396元/100g;   展开

基本信息

CAS Number108-29-2
MDL NumberMFCD00005400
Boiling Point207-208℃
Density1.05

安全信息

图形或危害标志
危险性说明 H315: Causes skin irritation.
H319: Causes serious eye irritation.
H335: May cause respiratory irritation.
防范说明 P233: Keep container tightly closed.
P260: Do not breathe .
P261: Avoid breathing .
P264: Wash hands thoroughly after handling.
P271: Use only outdoors or in a well-ventilated area.
P280: Wear .
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P304: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing..
P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P312: Call a POISON CENTER or doctor/physician if you feel unwell.
P321: Specific treatment (see relevant procedures. on this label).
P332 + P313: If skin irritation occurs: Get medical advice/ attention.
P337 + P313: If eye irritation persists: Get medical advice/attention.
P340: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P362: Take off contaminated clothing and wash before reuse.
P403: Store in a well-ventilated place.
P403 + P233: Store in a well-ventilated place. Keep container tightly closed.
P405: Store locked up.
P501: Dispose of contents/container to in accordance with local regulation .
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