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Merck
CN

85707

2,5-二羟基苯甲酸

suitable for matrix substance for MALDI-MS, >99.0% (HPLC)

别名:

2,5-DHBA, DHB, 氢醌羧酸, 龙胆酸

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关于此项目

线性分子式:
(HO)2C6H3CO2H
化学文摘社编号:
490-79-9
分子量:
154.12
UNSPSC Code:
41115716
NACRES:
NA.21
PubChem Substance ID:
329769406
EC Number:
207-718-5
Beilstein/REAXYS Number:
2209119
MDL number:
MFCD00002460

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产品名称

2,5-二羟基苯甲酸, suitable for matrix substance for MALDI-MS, >99.0% (HPLC)

InChI key

WXTMDXOMEHJXQO-UHFFFAOYSA-N

InChI

1S/C7H6O4/c8-4-1-2-6(9)5(3-4)7(10)11/h1-3,8-9H,(H,10,11)

SMILES string

OC(=O)c1cc(O)ccc1O

assay

>99.0% (HPLC)

form

powder

analyte functional class(es)

polymers

analyte chemical class(es)

glycans, lipids, organic molecules, peptides, proteins

technique(s)

MALDI-MS: suitable

mp

200-207 °C
204-208 °C (lit.)

cation traces

Ba: ≤5 mg/kg
Ca: ≤5 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
K: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

ε (extinction coefficient)

>2000 at 337 nm

suitability

suitable for matrix substance for MALDI-MS

Quality Level

100

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相关类别

Application

2,5-二羟基苯甲酸是一种离子液体基质，可用于通过基质辅助激光解吸/电离结合质谱对生物分子进行分析。
最常用的碳水化合物基质。 用于游离中性聚糖的MALDI-MS。 产生[M+Na]+离子；可能产生较弱的[M+K]+离子。 可通过添加适当的无机盐产生其他离子类别。

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H302

Hazard Classifications

Acute Tox. 4 Oral

存储类别

11 - Combustible Solids

wgk

WGK 3

ppe

dust mask type N95 (US), Eyeshields, Gloves

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
BCCK7201
BCCH0097
BCCG8653
BCCD3710
BCCC9770

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Matrix-assisted laser desorption/ionization mass spectrometry with additives to 2,5-di-hydroxy-benzoic acid.
Karas, M., et al.,
Org. Mass Spectrom., 28, 1476-1481 (1993)
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F Bochner et al.
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实验方案

Mass Spectrometry of Glycans

Explore mass spectrometry analysis of glycans for glycomic & glycoproteomic neutral & acidic glycan analysis. See a general mass spec glycan analysis procedure.

聚糖的质谱

该聚糖质谱分析方案，被称之为干液滴法，基于原始的MALDI实验并依然是MS领域中最常用的方法。

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