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2-甲基丁酸

2-甲基丁酸用途

【用途一】
用于调配食用、烟用和日化香精
【用途二】
GB 2760--1996规定为允许使用的食品用香料。用于配制乳酪、奶油、巧克力等香精。

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2-甲基丁酸名称

[ CAS 号 ]:
116-53-0

[ 中文名 ]:
2-甲基丁酸

[ 英文名 ]:
2-Methylbutyric acid

[中文别名 ]:

[英文别名 ]:

2-Methyl butyric acid
.α.-Methylbutyric acid
DL-2-Methylbutyric Acid
MFCD00002669
QVY2&1
2-Methylbutyric acid
Butanoic acid, 2-methyl-
EINECS 204-145-2
UNII:PX7ZNN5GXK
(±)-2-Methylbutyric acid

2-甲基丁酸物理化学性质

[ 密度 ]:
1.0±0.1 g/cm3

[ 沸点 ]:
175.3±8.0 °C at 760 mmHg

[ 熔点 ]:
-70ºC

[ 分子式 ]:
C₅H₁₀O₂

[ 分子量 ]:
102.132

[ 闪点 ]:
73.9±0.0 °C

[ 精确质量 ]:
102.068077

[ PSA ]:
37.30000

[ LogP ]:
1.13

[ 外观性状 ]:
无色透明液体

[ 蒸汽压 ]:
0.6±0.7 mmHg at 25°C

[ 折射率 ]:
1.418

[ 储存条件 ]:
0-6°C

[ 水溶解性 ]:
45 g/L (20 ºC)

2-甲基丁酸MSDS

2-甲基丁酸毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: EK7897000

CHEMICAL NAME :: Butanoic acid, 2-methyl-

CAS REGISTRY NUMBER :: 116-53-0

BEILSTEIN REFERENCE NO. :: 1098537

LAST UPDATED :: 199710

DATA ITEMS CITED :: 5

MOLECULAR FORMULA :: C5-H10-O2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1870 uL/kg

TOXIC EFFECTS :: Gastrointestinal - changes in structure or function of salivary glands Gastrointestinal - hypermotility, diarrhea Musculoskeletal - other changes

REFERENCE :: ATDAEI Acute Toxicity Data. Journal of the American College of Toxicology, Part B. (Mary Ann Liebert, Inc., 1651 Third Ave., New York, NY 10128) V.1- 1990- Volume(issue)/page/year: 1,171,1992

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 1460 uL/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Olfaction) - effect, not otherwise specified Behavioral - ataxia Gastrointestinal - other changes

REFERENCE :: ATDAEI Acute Toxicity Data. Journal of the American College of Toxicology, Part B. (Mary Ann Liebert, Inc., 1651 Third Ave., New York, NY 10128) V.1- 1990- Volume(issue)/page/year: 1,171,1992 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X9650 No. of Facilities: 11 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 193 (estimated) No. of Female Employees: 11 (estimated)

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2-甲基丁酸安全信息

[ 符号 ]:

GHS05, GHS07

[ 信号词 ]:
Danger

[ 危害声明 ]:
H302 + H312-H314

[ 警示性声明 ]:
P280-P305 + P351 + P338-P310

[ 个人防护装备 ]:
Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ 危害码 (欧洲) ]:
C:Corrosive

[ 风险声明 (欧洲) ]:
R21/22;R34

[ 安全声明 (欧洲) ]:
S26-S36/37/39-S45

[ 危险品运输编码 ]:
UN 3265

[ WGK德国 ]:
1

[ RTECS号 ]:
EK7897000

[ 包装等级 ]:
III

[ 危险类别 ]:
8.0

[ 海关编码 ]:
29156090

2-甲基丁酸合成路线

2-甲基丁酸上下游产品

2-甲基丁酸上游产品

2-甲基丁酸下游产品

2-甲基丁酸制备

1. 由杂醇油氧化而得。由甲基乙基丙二酸加热脱羧基而得。

2. 烟草：OR，44；OR，49；Bu，56；OR，26；FC，9；FC，BU，OR，18；Bu，9；OR，41；BU，26；FC，40/。

3.于装有搅拌器、温度计、回流冷凝器、滴液漏斗的反应瓶中，加入12.5g洁净的镁屑，50mL无水乙醚，一粒碘，3g2-氯丁烷，慢慢加热。反应开始后，再加入无水乙醚75mL。滴加由2-氯丁烷（2）43g（共0.5mol）与270mL无水乙醚配成的溶液。控制慢慢回流，约0.5h加完。而后继续搅拌回流，使镁基本反应完。加入100mL无水乙醚，将反应物用冰盐浴冷却至-12℃左右。将反应物慢慢倒入盛有125g干燥的粉状干冰中，充分搅拌，直至干冰挥发完全。再慢慢加入300g碎冰和75mL浓盐酸的混合物，充分搅拌以分离完全。分出有机层，水层用乙醚提取，合并有机层。乙醚层中加入碎冰，并加入20%的氢氧化钠溶液完全100mL，充分摇动、使有机酸进入水层。分出水层，乙醚层用氢氧化钠溶液提取。合并水层。水层减压浓缩。冷却，用盐酸酸化。分出有机层，水层蒸馏，直至无油状物镏出。镏出液用氯化钠饱和，分出有机层，合并有机层，无水硫酸钠干燥，蒸馏，收集173～174℃的馏分，得2-甲基丁酸（1）40g，收率79%。

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2-甲基丁酸海关

[ 海关编码 ]: 29156090

2-甲基丁酸文献

Combined effects of nutrients and temperature on the production of fermentative aromas by Saccharomyces cerevisiae during wine fermentation.

Appl. Microbiol. Biotechnol. 99(5) , 2291-304, (2015)

Volatile compounds produced by yeast during fermentation greatly influence the organoleptic qualities of wine. We developed a model to predict the combined effects of initial nitrogen and phytosterol ...

GC/MS method for determining carbon isotope enrichment and concentration of underivatized short-chain fatty acids by direct aqueous solution injection of biogas digester samples.

Talanta 143 , 56-63, (2015)

In anaerobic digestion of organic matter, several metabolic pathways are involved during the simultaneous production and consumption of short-chain fatty acids (SCFA) in general and acetate in particu...

Structural variation governs substrate specificity for organic anion transporter (OAT) homologs. Potential remote sensing by OAT family members.

J. Biol. Chem. 282 , 23841-53, (2007)

Organic anion transporters (OATs, SLC22) interact with a remarkably diverse array of endogenous and exogenous organic anions. However, little is known about the structural features that determine thei...

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2-甲基丁酸

2-甲基丁酸用途

2-甲基丁酸名称

2-甲基丁酸物理化学性质

2-甲基丁酸MSDS

详细MSDS(安全技术说明书)

2-甲基丁酸毒性和生态

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

2-甲基丁酸安全信息

2-甲基丁酸合成路线

详细合成路线

2-甲基丁酸上下游产品

2-甲基丁酸上游产品

2-甲基丁酸下游产品

2-甲基丁酸制备

2-甲基丁酸海关

2-甲基丁酸文献

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