2,5-Dihydroxybenzoic acid

• Catalog No.: 85707
• CAS Number: 490-79-9
• M. F.: C7H6O4
• M. W.: 154.12014
• Purity: >99.0% (HPLC)

SYNONYMS

• Title: 2,5-二羟基苯甲酸
• IUPAC name: 2,5-dihydroxybenzoic acid
• IUPAC Traditional name: 2,5-dihydroxybenzoic acid
• Synonyms: 2,5-DHBA; 氢醌羧酸; DHB; Gentisic acid; 龙胆酸; Hydroquinonecarboxylic acid

DATABASE IDS

• CAS Number: 490-79-9
• EC Number: 207-718-5
• Beilstein Number: 2209119
• MDL Number: MFCD00002460

PROPERTIES

• abs.: extinction/337 nm >2000
• Analyte suitability: glycans
• Analyte suitability: lipids
• Analyte suitability: organic molecules
• Analyte suitability: peptides
• Analyte suitability: polymers
• Analyte suitability: proteins
• Cation Traces: Ba: ≤5 mg/kg
• Cation Traces: Ca: ≤5 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: K: ≤5 mg/kg
• Cation Traces: Mg: ≤5 mg/kg
• Cation Traces: Mn: ≤5 mg/kg
• Cation Traces: Na: ≤5 mg/kg
• Cation Traces: Ni: ≤5 mg/kg
• Cation Traces: Pb: ≤5 mg/kg
• Cation Traces: Zn: ≤5 mg/kg
• Grade: matrix substance for MALDI-MS
• Linear Formula: (HO)2C6H3CO2H
• Purity: >99.0% (HPLC)
• Melting Point: 200-205 °C
• Melting Point: 204-208 °C(lit.)
• GHS Signal Word: Warning
• GHS Hazard statements: H302-H315-H319-H335
• European Hazard Symbols: Harmful (Xn)
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves
• GHS Precautionary statements: P261-P305 + P351 + P338
• Risk Statements: 22-36/37/38
• RTECS: LY3850000
• Safety Statements: 26-36
• German water hazard class: 3

DETAILS

Description (English)

Application
Most commonly used matrix for carbohydrates. For MALDI-MS of free neutral glycans. Produces [M+Na]+ ion; may show a weaker [M+K]+ ion. Other species may be generated by the addition of the appropriate inorganic salt.1
Protocols & Applications
Methods of glycosylated protein analysis by Mass Spectrometry

Description (简体中文)

Application
最常用的碳水化合物基质。用于 MALDI-MS 分析游离中性多糖。生成钠离子峰，可能有弱钾离子峰。通过加入合适的无机盐可生成其他物质。1
Protocols & Applications
Methods of glycosylated protein analysis by Mass Spectrometry