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Merck
CN

85707

Supelco

2,5-二羟基苯甲酸

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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About This Item

线性分子式:
(HO)2C6H3CO2H
CAS号:
分子量:
154.12
Beilstein:
2209119
EC 号:
MDL编号:
UNSPSC代码:
12000000
PubChem化学物质编号:
NACRES:
NA.21

等级

matrix substance for MALDI-MS

质量水平

检测方案

>99.0% (HPLC)

形式

powder

分析物功能类别

polymers

分析物化学类别

glycans, lipids, organic molecules, peptides, proteins

技术

MALDI-MS: suitable

mp

200-207 °C
204-208 °C (lit.)

痕量阳离子

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 (消光系数)

>2000 at 337 nm

SMILES字符串

OC(=O)c1cc(O)ccc1O

InChI

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

InChI key

WXTMDXOMEHJXQO-UHFFFAOYSA-N

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应用

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。

相关产品

象形图

Exclamation mark

警示用语:

Warning

危险声明

危险分类

Acute Tox. 4 Oral

WGK

WGK 3

个人防护装备

dust mask type N95 (US), Eyeshields, Gloves


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2,5-Dihydroxybenzoic acid butylamine and other ionic liquid matrixes for enhanced MALDI-MS analysis of biomolecules
Mank M, et al.
Analytical Chemistry, 76(10), 2938-2950 (2004)
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)
F Bochner et al.
Clinical pharmacology and therapeutics, 30(2), 266-275 (1981-08-01)
Single oral doses of aspirin (ASA, 1,500 mg), sodium salicylate (NaSA, 1,500 mg, 1,200 mg), and salicyluric acid (SUA, 500 mg) were given to five subjects. Serial plasma and urine samples were collected for 24 hr (plasma) and up to
Naoki Sato
Plant & cell physiology, 56(10), 1890-1899 (2015-08-16)
Monogalactosyldiacylglycerol (MGDG) is ubiquitous in the photosynthetic membranes of cyanobacteria and chloroplasts. It is synthesized by galactosylation of diacylglycerol (DAG) in the chloroplasts, whereas it is produced by epimerization of monoglucosyldiacylglycerol (GlcDG) in at least several cyanobacteria that have been
Stefania Montersino et al.
The Journal of biological chemistry, 288(36), 26235-26245 (2013-07-19)
3-Hydroxybenzoate 6-hydroxylase (3HB6H) from Rhodococcus jostii RHA1 is a dimeric flavoprotein that catalyzes the NADH- and oxygen-dependent para-hydroxylation of 3-hydroxybenzoate to 2,5-dihydroxybenzoate. In this study, we report the crystal structure of 3HB6H as expressed in Escherichia coli. The overall fold

实验方案

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。

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

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