27606

DL-Malic acid

meets analytical specification of FCC, E296, 99-100.5% (alkalimetric)

• 동의어(들): (±)-2-Hydroxysuccinic acid, DL-Hydroxybutanedioic acid
• Linear Formula: HO₂CCH₂CH(OH)CO₂H
• CAS Number: 6915-15-7
• Molecular Weight: 134.09
• Beilstein: 1723539
• EC Number: 230-022-8
• MDL number: MFCD00064212
• UNSPSC 코드: 12352106
• PubChem Substance ID: 57648231
• NACRES: NA.25

속성

• vapor density: 4.6 (vs air)
• Quality Level: 200
• vapor pressure: <0.1 mmHg ( 20 °C)
• 분석: 99-100.5% (alkalimetric)
• 양식: solid
• 광학 활성: [α]/D −0.10 to +0.10°
• autoignition temp.: 644 °F
• 품질: meets analytical specification of FCC, E296
• 기술: IR spectroscopy: suitable
• 불순물: ≤0.05% maleic acid; ≤0.1% water insoluble matter; ≤1% fumaric acid
• 무기 잔류물: ≤0.1% (as SO₄)
• mp: 129-133 °C; 131-133 °C (lit.)
• solubility: acetone: 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
• 양이온 미량물: As: ≤3 mg/kg; Hg: ≤1 mg/kg; Pb: ≤2 mg/kg
• 적합성: complies for identity (IR)
• 응용 분야: pharmaceutical (small molecule)
• SMILES string: OC(CC(O)=O)C(O)=O
• InChI: 1S/C4H6O5/c5-2(4(8)9)1-3(6)7/h2,5H,1H2,(H,6,7)(H,8,9)
• InChI key: BJEPYKJPYRNKOW-UHFFFAOYSA-N

설명

애플리케이션

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

생화학적/생리학적 작용

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.

안전성 정보

• 픽토그램: GHS07
• 신호어: Warning
• 유해 및 위험 성명서: H319
• 예방조치 성명서: P264 - P280 - P305 + P351 + P338 - P337 + P313
• Hazard Classifications: Eye Irrit. 2
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point (°F): 397.4 °F
• Flash Point (°C): 203 °C
• 개인 보호 장비: dust mask type N95 (US), Eyeshields, Gloves