| 北京海富達科技有限公司 |
18910282275
在線溝通：
胡先生 （經理）
- 電話：
- 手機：
- 18910282275
- 售后電話：
- 18910282275
- 傳真：
- 86-010-62981256
- 聯系我時，
- 告知來自環保在線
- 個性化：
- www.hfd-lab.com
!葡萄糖苷酸酶檢測底物（Aldouronic Acid Mixture Substrate for
| 參考價 | 面議 |
- 型號 型號:JKY/O-AMX M316643
- 品牌
- 廠商性質 生產商
- 所在地 北京市
更新時間：2017-09-25 22:20:54瀏覽次數：596
聯系我們時請說明是環保在線上看到的信息，謝謝!
葡萄糖苷酸酶檢測底物（Aldouronic Acid Mixture Substrate for a-glucuronidase） 120mg 愛爾蘭 型號:JKY/O-AMX
集團
名稱:葡萄糖苷酸酶檢測底物
英語名:（Aldouronic Acid Mixture Substrate for a-glucuronidase）
規格:120mg
產地:愛爾蘭
外觀 液體
比重 不適用
在溶于水稱為易溶解度
pH值 3.5
氣味 無
狀 液體
穩定 在冷凍穩定過5年
成分:
名稱 比例
Aldouronic酸（從樺木木聚糖） 10％
水 90％
Aldouronic Acid Mixture
（Contains a mixture of aldotetraouronic, aldotriouronic and aldobiouronic acids; 40:40:20）. Substrate for a-glucuronidase.
Catalogue Number: O-AMX
Content: 120 mg
Appearance Liquid
Specific Gravity Not applicable
Solubility in Water Readily soluble
pH Value 3.5
Odour None
Form Liquid
Stability Stable in a freezer for more than 5 years.
Ingredients Name CAS Proportion
Aldouronic Acids （from Birchwood Xylan） 10%
Water 90%
PREPARATION:
Aldo-uronic acids are prepared by the controlled acid hydrolysis of glucurono-xylan, followed
by chromatographic separation of the oligomers.
PURITY:
The aldo-uronic acids are devoid of xylosaccharides, but each individual oligomer contains some
of the higher and lower homologue.These charged oligosaccharides are difficult to compley
separate chromatographically.
The thin layer chromatographic pattern of the oligomers is shown below. Chromatography is
in ethyl acetate: acetic acid: water （2:1:1, once）.The chromatographic pattern of a mixture of
borohydride reduced aldo-uronic acids is also shown.This mixture is a potential substrate for
a-glucuronidase.The 13C-n.m.r patterns for aldotriouronic acid is as described by Cavagna,
F., Deger, H. and Puls, J. （1984） Carbohydrate Research, 129, 1-8.
PRODUCT AS SUPPLIED:
Aldo-uronic acids are quite unstable at neutral pH. Consequently, they are supplied in solution in
10 mM ammonium formate （pH 3.0） or in 100mM acetic acid.These should be stored frozen on
receipt.The borohydride reduced aldo-uronic acids are more stable.These are supplied in a
freeze-dried form （as a hydroscopic syrup）. This should also be stored at - 20°C on receipt.
THIN LAYER CHROMATOGRAPHY OF ALDO-URONIC ACIDS:
1. Aldo-biouronic acid standard （O-ABIO）
2. Aldo-triouronic acid （~85% pure）
3. Aldo-tetraouronic acid （~ 80% pure）
4. Reduced aldo-uronic acids.
Lot 80601.（tri:tetra:penta = 40:40:20） （OAMXR）.
A potential substrate for the assay of
a-glucuronidase.
5. Aldo-uronic acid mixture. Lot 10801.
Contaminants in the oligosaccharides are
higher and lower dp homologues.
以上信息由企業自行提供，信息內容的真實性、準確性和合法性由相關企業負責，環保在線對此不承擔任何保證責任。 溫馨提示：為規避購買風險，建議您在購買產品前務必確認供應商資質及產品質量。
