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DL-苹果酸,DL-Malic acid;meets analytical specification of FCC, E296, 99-100.5% (alkalimetric)

别名:(±)-2-羟基琥珀酸;DL-羟基丁二酸;DL苹果酸;(±)-2-Hydroxysuccinic acid;DL-Hydroxybutanedioic acid

CAS号 6915-15-7 线性分子式 HO2CCH2CH(OH)CO2H 分子量 134.09 Beilstein/REAXYS Number 1723539 EINECS 编号 230-022-8 MDL number MFCD00064212 PubChem Substance ID 57648231 NACRES NA.25
制造商品牌: 西格玛 Sigma-Aldrich
货号(SKU): 27606
CAS号: 6915-15-7
MDL号: MFCD00064212
增值税发票 √ 免费货运 [顺丰 联邦] √
¥1,165.20

产品描述

Application

DL-Malic acid is an organic acid used for studying the impact on ultrasound pasteurization.[2] It has also been used to culture Pichia membraneafaciens.[3]

Biochem/physiol Actions

Malic acid is a dicarboxylic acid and an important regulatory metabolite. It has been implicated in process of fruit ripening. Malic acid is important for the starch metabolism; low malic acid content results in transient accumulation of starch. Mitochondrial-malate metabolism modulates ADP-glucose pyrophosphorylase activity and redox status of plastids.[1]

性质

Quality Level200
vapor density4.6 (vs air)
vapor pressure<0.1 mmHg ( 20 °C)
assay99-100.5% (alkalimetric)
optical activity[α]/D −0.10 to +0.10°
autoignition temp.644 °F
qualitymeets analytical specification of FCC, E296
impurities≤0.05% maleic acid
≤0.1% water insoluble matter
≤1% fumaric acid
ign. residue≤0.1% (as SO4)
mp129-133 °C
131-133 °C (lit.)
solubilityacetone: soluble 17.75 g/ 100 gm at 20 °C
diethyl ether: soluble 0.84 g/100 gm at 20 °C
dioxane: soluble 22.70 g/100 gm at 20 °C
ethanol: soluble 45.53 g/100 gm at 20 °C
methanol: soluble 82.70 g/100 g at 20 °C
water: soluble 55.8 g/100 gm at 20 °C
benzene: insoluble
cation tracesAs: ≤3 mg/kg
Hg: ≤1 mg/kg
Pb: ≤2 mg/kg
suitabilitycomplies for identity (IR)
Featured IndustryPharmaceutical (small molecule)
SMILES stringOC(CC(O)=O)C(O)=O
InChI1S/C4H6O5/c5-2(4(8)9)1-3(6)7/h2,5H,1H2,(H,6,7)(H,8,9)
InChI keyBJEPYKJPYRNKOW-UHFFFAOYSA-N


安全信息

符号
GHS07  GHS07
信号词 Warning
危害声明 H319
个人防护装备 dust mask type N95 (US)EyeshieldsGloves
危害码 (欧洲) Xi
风险声明 (欧洲) 36
安全声明 (欧洲) 26
RIDADR NONH for all modes of transport
WGK德国 WGK 3
RTECS ON7175000
商品规格
属性名称属性值
储存温度 Storage temp.常温阴凉避光
全球实时库存 Availability √美国St. Louis ≥ 190 | 欧洲Eur. ≥ 66 | 東京Tokyo ≥ 82 | 香港与北京 ≥ 55
商品标签