| 货号 (SKU) | 包装规格 | 是否现货 | 价格 | 数量 |
|---|---|---|---|---|
| M490020-50mg | 50mg |
现货  |
| |
| M490020-250mg | 250mg |
现货 |
| |
| M490020-1g | 1g |
现货 |
|
| 规格或纯度 | > 98% |
|---|---|
| 英文名称 | Mannan from Carob seed |
| 别名 | 甘露聚糖 来源于角豆种子 |
| 英文别名 | 1,4-β-D-Mannan |
| 储存温度 | 2-8°C储存 |
| 运输条件 | 冰袋运输 |
| 产品介绍 |
This mannan is prepared by hydrolysis of carob galactomannan with pure Cellvibrio japonicus β-mannanase (with heat inactivation), followed by treatment with guar-seed α-galactosidase to remove essentially all of the α-linked D-galactosyl residues. The mannan which forms precipitates from solution and is recovered by centrifugation and washed with cold water. The mannan is then re-dissolved in 5% sodium hydroxide and reduced with sodium borohydride. On neutralisation with acetic acid, the mannan precipitates from solution and is washed with ethanol and recovered. This mannan is a useful substrate for the measurement of 1,4-β-D-mannanase assay using a reducing sugar method. Product description： High purity Mannan (1,4-β-D-Mannan) for use in research, biochemical enzyme assays and in vitro diagnostic analysis.Prepared by controlled hydrolysis of carob galactomannan with β-mannanase and α-galactosidase. An excellent substrate for endo-1,4-β-D-mannanase. |
| IUPAC Name | (2S,3S,4S,5S,6R)-2-[(2R,3S,4R,5R,6S)-6-[(2R,3S,4R,5S,6S)-4,5-dihydroxy-2-(hydroxymethyl)-6-[(2R,3R,4R,5S,6R)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol |
|---|---|
| INCHI | InChI=1S/C24H42O21/c25-1-5-9(29)10(30)15(35)22(40-5)44-19-7(3-27)42-24(17(37)12(19)32)45-20-8(4-28)41-23(16(36)13(20)33)43-18-6(2-26)39-21(38)14(34)11(18)31/h5-38H,1-4H2/t5-,6-,7-,8-,9-,10+,11-,12-,13-,14+,15+,16+,17-,18+,19-,20-,21-,22+,23+,24+/m1/s1 |
| InChi Key | LUEWUZLMQUOBSB-GFVSVBBRSA-N |
| Canonical SMILES | C(C1C(C(C(C(O1)OC2C(OC(C(C2O)O)OC3C(OC(C(C3O)O)OC4C(OC(C(C4O)O)O)CO)CO)CO)O)O)O)O |
| 分子式 |
|
| PubChem CID | 25147451 |
| 溶解性 | Insoluble in water. Can be dissolved at 20 mg/mL in 5% w/v sodium hydroxide.On neutralisation with 50% acetic acid, the mannan precipitates from solution as a very fine colloidal suspension. The suspension should be mixed gently by swirling the container |
|---|---|
| 比旋光度 | 89 ° |
| WGK Germany | 3 |
|---|---|
| RTECS | OP1949500 |
| 个人防护装备 | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
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