Citric acid

• Catalog No.: 27487
• CAS Number: 77-92-9
• M. F.: C6H8O7
• M. W.: 192.12352
• Purity: ≥99.5% (T)

SYNONYMS

• Title: 柠檬酸
• IUPAC name: 2-hydroxypropane-1,2,3-tricarboxylic acid
• IUPAC Traditional name: citro

DATABASE IDS

• Beilstein Number: 782061
• MDL Number: MFCD00011669
• PubChem SID: 24856611
• CAS Number: 77-92-9
• EC Number: 201-069-1

PROPERTIES

• Antion Traces: chloride (Cl-): ≤5 mg/kg
• Antion Traces: oxalate (C2O42-): ≤500 mg/kg
• Antion Traces: phosphate (PO43-): ≤5 mg/kg
• Antion Traces: sulfate (SO42-): ≤20 mg/kg
• Antion Traces: tartrate (C4H4O62-): ≤2000 mg/kg
• Cation Traces: Al: ≤5 mg/kg
• Cation Traces: As: ≤0.1 mg/kg
• Cation Traces: Ba: ≤5 mg/kg
• Cation Traces: Bi: ≤5 mg/kg
• Cation Traces: Ca: ≤10 mg/kg
• Cation Traces: Cd: ≤5 mg/kg
• Cation Traces: Co: ≤5 mg/kg
• Cation Traces: Cr: ≤5 mg/kg
• Cation Traces: Cu: ≤5 mg/kg
• Cation Traces: Fe: ≤5 mg/kg
• Cation Traces: K: ≤50 mg/kg
• Cation Traces: Li: ≤5 mg/kg
• Cation Traces: Mg: ≤5 mg/kg
• Cation Traces: Mn: ≤5 mg/kg
• Cation Traces: Mo: ≤5 mg/kg
• Cation Traces: Na: ≤50 mg/kg
• Cation Traces: Ni: ≤5 mg/kg
• Cation Traces: Pb: ≤5 mg/kg
• Cation Traces: Sr: ≤5 mg/kg
• Cation Traces: Zn: ≤5 mg/kg
• Ignition Residue: ≤0.05% (as SO4)
• Impurities: insoluble matter, passes filter test
• λ: 1 M in H2O
• Linear Formula: HOC(COOH)(CH2COOH)2
• Loss on Drying: ≤0.5% loss on drying, 110 °C
• Product Line: BioUltra
• Purity: ≥99.5% (T)
• Gene Information: human ... SRC(6714)
• Absorption Wavelength: λ: 260 nm Amax: 0.20
• Absorption Wavelength: λ: 280 nm Amax: 0.10
• pKa: (1) 3.13, (2) 4.76, (3) 6.4
• Melting Point: 153-159 °C(lit.)
• pH: 1.0-2.0 (25 °C, 1 M in H2O)
• Solubility: H2O: soluble1 M at 20 °C, clear, colorless
• Explode Limits: 8 %, 65 °F
• GHS Signal Word: Warning
• GHS Hazard statements: H319
• European Hazard Symbols: Irritant (Xi)
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves
• GHS Precautionary statements: P305 + P351 + P338
• Risk Statements: 36
• RTECS: GE7350000
• Safety Statements: 26
• German water hazard class: 1

DETAILS

Description (English)

Other Notes
Buffer component for triple-column amino acid analysis1; Optimal buffer for dissociation of radioiodinated antibodies from viable murine tumor cells2
Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. 27487.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit sigma.com/metlin.

Description (简体中文)

Other Notes
Buffer component for triple-column amino acid analysis1; Optimal buffer for dissociation of radioiodinated antibodies from viable murine tumor cells2
Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. 27487.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit sigma.com/metlin.