product name
4-羟基苯肼, ≥97%
生物来源
synthetic
质量水平
检测方案
≥97%
形式
powder
mp
264-266 °C (dec.) (lit.)
溶解性
acetic acid: water (1:1): 25 mg/mL, clear, colorless to faintly yellow
荧光
λex 360 nm; λem 425 nm (reacted with 5-hydroxymethyl-furaldehydezinc acetate)
SMILES字符串
NNC(=O)c1ccc(O)cc1
InChI
1S/C7H8N2O2/c8-9-7(11)5-1-3-6(10)4-2-5/h1-4,10H,8H2,(H,9,11)
InChI key
ZMZGIVVRBMFZSG-UHFFFAOYSA-N
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应用
4-羟基苯甲酰肼可用于：
- 测定淀粉消化中麦芽糖的浓度
- 分析含食物水解产物的果聚糖中的糖
- 比色测定，预估加工饲料中的还原糖
生化/生理作用
4-羟基苯甲酰肼(PAHBAH)用于分析α-淀粉酶和葡糖淀粉酶活性。基于PAHBAH的分析方法可非特异性地比色测定（415nm）样品中存在的游离还原糖基。
警示用语：
Warning
危险声明
危险分类
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
靶器官
Respiratory system
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
dust mask type N95 (US), Eyeshields, Gloves
Glucoamylase (exo-1, 4-alpha-d-glucan glucanohydrolase, EC 3.2. 1.3) is the major starch-degrading enzyme secreted by the phytopathogenic fungus Colletotrichum gloeosporioides
Krause DR, et al
Microbiology, 137(10), 2463-2468 (1991)
Dongling Qiao et al.
Carbohydrate polymers, 144, 271-281 (2016-04-17)
Combined analytical techniques were used to explore the effects of alkali treatment on the multi-scale structure and digestion behavior of starches with different amylose/amylopectin ratios. Alkali treatment disrupted the amorphous matrix, and partial lamellae and crystallites, which weakened starch molecular
Fang Xie et al.
International journal of biological macromolecules, 126, 525-530 (2018-12-28)
Starch-containing food normally has complex components and structure, which control its digestion kinetic properties and nutritional value. However, interactions among multiple food components and their effects on starch digestion kinetics are rarely reported. Here, we evaluated the influence of tea
Extrusion induced low-order starch matrices: Enzymic hydrolysis and structure
Zhang B, et al.
Carbohydrate Polymers, 134(10), 485-496 (2015)
Usman Ghani et al.
Bioorganic & medicinal chemistry, 18(11), 4042-4048 (2010-05-11)
A series of 1,3,4-thiadiazole-2(3H)-thiones, 1,3,4-oxadiazole-2(3H)-thiones, 4-amino-1,2,4-triazole-5(4H)-thiones, and substituted hydrazides were tailored and synthesized as new potent inhibitors of tyrosinase. The rationale for inhibitor design was based on the active site structural evidence from the crystal structures of bacterial tyrosinase and
实验方案
Enzymatic Assay of Invertase
在测定转化酶活性时，使用了一种在410nm处的分光光度终点反应法进行测定。在55 ºC、pH 4.5条件下，一单位的转化酶每分钟可将1.0 μmole的蔗糖水解为转化糖。
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