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CAS RN: 490-79-9 | 產品號碼: D2933
2,5-Dihydroxybenzoic Acid [Matrix for MALDI-TOF/MS]
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![2,5-Dihydroxybenzoic Acid [Matrix for MALDI-TOF/MS]](/_ui/responsive/theme-tci/images/missing_product_zoom.jpg "2,5-Dihydroxybenzoic Acid [Matrix for MALDI-TOF/MS]")
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| 產品號碼 | D2933 |
| 純度/分析方法 | >99.0%(GC)(T) |
| 分子式 / 分子量 | C__7H__6O__4 = 154.12 |
| 外觀與形狀（20°C） | Solid |
| 儲存條件 | Room Temperature (Recommended in a cool and dark place, <15°C) |
| 包裝和容器 | 1G-Glass Bottle with Plastic Insert （閲覽圖片） |
| CAS RN | 490-79-9 |
| Reaxys-RN | 2209119 |
| SDBS (AIST Spectral DB) | 1398 |
| Merck Index(14) | 4398 |
| MDL編號 | MFCD00002460 |
產品規格
| Appearance | White to Light yellow powder to crystal |
| Purity(GC) | min. 99.0 % |
| Purity(Neutralization titration) | min. 99.0 % |
性質
| 熔點 | 206 °C(dec.) |
| 溶解性（可溶於） | Ether, Alcohol |
| 溶解性（不溶於） | Benzene, Chloroform |
GHS
| 圖形表示 |
|
| 信號詞 | Warning |
| 危險性說明 | H315 : Causes skin irritation. H319 : Causes serious eye irritation. H412 : Harmful to aquatic life with long lasting effects. |
| 防範說明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P273 : Avoid release to the environment. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ eye protection/ face protection. P302 + P352 : IF ON SKIN: Wash with plenty of water. P337 + P313 : If eye irritation persists: Get medical advice/ attention. P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P362 + P364 : Take off contaminated clothing and wash it before reuse. P332 + P313 : If skin irritation occurs: Get medical advice/ attention. |
相關法規
| RTECS # | LY3850000 |
運輸資料
| HS編碼* | 2918.29-000 |
Application
A Matrix for MALDI TOF Mass Spectrometry
Matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry is a standard soft ionization technique in mass spectrometry. 2,5-Dihydroxybenzoic acid (DHB) and its butylamine salt (DHBB) [D5355] are often used as a matrix for MALDI-TOF mass spectrometry, for oligosaccharide, lipid and polar synthetic polymer analysis in particular. Moreover, DHB can be used for small molecules which are not ionized by other matrixes. Incidentally, IUPAC defined standard terms relating to mass spectrometry in 2013 (free access).
References
- Improvement of signal reproducibility and matrix/comatrix effects in MALDI analysis
- Analysis of Acidic Oligosaccharides and Glycopeptides by Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry
- Sublimation as a method of matrix application for mass spectrometric imaging
- Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)
考研文獻
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