27109

Citric acid

meets analytical specification of Ph. Eur., BP, USP, E330, anhydrous, 99.5-100.5% (based on anhydrous substance)

• Linear Formula: HOC(COOH)(CH₂COOH)₂
• CAS Number: 77-92-9
• Molecular Weight: 192.12
• Beilstein: 782061
• EC Number: 201-069-1
• MDL number: MFCD00011669
• UNSPSC 코드: 12352106
• eCl@ss: 39021801
• PubChem Substance ID: 329752978
• NACRES: NA.21

속성

• Quality Level: 200
• 분석: 99.5-100.5% (based on anhydrous substance)
• 형태: grit
• 품질: anhydrous; meets analytical specification of Ph. Eur., BP, USP, E330
• expl. lim.: 8 %, 65 °F
• 불순물: residual solvents, complies; ≤0.0005% heavy metals (as Pb); ≤0.5% water (Karl Fischer)
• 무기 잔류물: ≤0.05% (as SO₄)
• pKa: (1) 3.13, (2) 4.76, (3) 6.4
• mp: 153-159 °C (lit.)
• solubility: water: 383 g/L at 25 °C
• 음이온 미량물: chloride (Cl^-): ≤50 ppm; oxalate (as oxalic acid): ≤100 ppm; sulfate (SO₄^2-): ≤100 ppm
• 양이온 미량물: As: ≤1 ppm; Ca: ≤200 ppm; Cu: ≤10 ppm; Fe: ≤10 ppm; Hg: ≤1 ppm; Pb: ≤0.5 ppm; Zn: ≤10 ppm
• 적합성: complies for appearance of solution; complies for reaction against H₂SO₄
• SMILES string: OC(=O)CC(O)(CC(O)=O)C(O)=O
• InChI: 1S/C6H8O7/c7-3(8)1-6(13,5(11)12)2-4(9)10/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)
• InChI key: KRKNYBCHXYNGOX-UHFFFAOYSA-N
• 유전자 정보: human ... SRC(6714)

설명

애플리케이션

Citric acid was used as a test reagent for studying whether the novel pyridazinylpiperazine analog TPRV-1 inhibitor can reduce cough reflex induced by citric acid and capsaicin in guinea pig.

생화학적/생리학적 작용

Citric acid in dietary form can augments absorption of aluminium in antacids. It also facilitates the phytoremediation of heavy metal contaminated soil and can transform cadmium into more transportable forms.

안전성 정보

• 픽토그램: GHS07
• 신호어: Warning
• 유해 및 위험 성명서: H319,H335
• 예방조치 성명서: P261 - P264 - P271 - P280 - P304 + P340 + P312 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - STOT SE 3
• 표적 기관: Respiratory system
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable