英文名称:Benzoic Acid、Carboxybenzene 别名:安息香酸、苯酸、苯蚁酸、苄酸、息香酸 分子式:C6H5COOH 有效物质含量:99 型号:食品级 品牌:Benzoic Acid、Carboxybenzene生产厂家 CAS编号: 65-85-0 用途:食品、饲料、工业等防腐、抑菌、延长保质期 苯甲酸生产厂家 苯甲酸厂家 食品级苯甲酸 用途 苯甲酸报价 苯甲酸...
of benzoic acid lies in the undissociated (nonionized acid) molecules that increase in number as the pH of the food environment drops. The dissociation constant (pKa) of benzoic acid is 4.2, at which pH the concentration of both the dissociated and undissociated fractions are equal (Figure 1...
Dietary supplementation of benzoic acid and essential oil compounds affects buffering capacity of the feeds, performance of Turkey poults and their antioxidant status, pH in the digestive tract, intestinal microbiota and morphology Monohydroxy benzoic acids with the -OH moiety at the ortho- or para-...
Raman spectroscopyThis study presents a novel surface-enhanced Raman spectroscopy (SERS) method for detecting CA19–9 in colorectal adenocarcinoma using 4-thiobenzoic acid (4-TBA) functionalized gold nanoparticles (nanospheres). The optimized SERS probes exhibited a maximum enhancement at pH 7 and 50...
2-溴代-2-氯价格:价格电议产品详情:中文名称:2-溴代-2-氯*中文别名:a-溴-2-氯*英文名称:alpha-Bromo(2-Chloro)PhenylaceticAcid英文别名:Alphabromo-2-chloroph... 2- 酮 2-Piperidone 675-20-7价格:价格电议产品详情:基本信息中文名称2-氮己环酮英文名称2-Piperidone中文别名戊内酰胺;delta-戊内胺...
Vapor Pressure: Vapour pressure, Pa at 25°C: 0.1 Vapor Density: 4.21 (vs air) Toxicity: LD50 orally in Rabbit: 1700 mg/kg LD50 dermal Rabbit > 5000 mg/kg Odor: Odorless or with a slight benzaldehyde odor Taste: ALMOST TASTELESS /BENZOIC ACID USP/ PH: About 4 (solution in wa...
(pH 4.7; 0.25% OC), Tirstrup melt water sand (pH 6.1; 0.09% OC) and Djursland clayey till (pH 7.6; 0.22% OC), respectively, at 6°C. Soils were collected in North Sealand and Djursland, Jutland(7). Benzoic acid displayed negligible adsorption when using a montmorillonite (Volclay ...
FEMA2131 | BENZOIC ACID Fp250 °F storage temp.2-8°C solubilitysoluble, clear, colorless (95% ethanol, 1gm/3mL) pka4.19(at 25℃) formSolid colorWhite to yellow-beige to orange PH3.66(1 mM solution);3.12(10 mM solution);2.6(100 mM solution); ...
Benzoic acid derivativesRetention mechanismColumns partitionCluster analysisThe pH role in benzoic acid derivatives chromatographic analysis were under the current study. The retention factor (k), as well as the peak asymmetry (f AS), were determined and compared using five commercially available ...
英文名称3,4-Dimethoxybenzoic acid CAS93-07-2 分子式C9H10O4 分子量182.17 纯度HPLC≥98% 单位瓶 生物活性Veratric acid (3,4-Dimethoxybenzoic acid) 是从蔬菜和水果中得到的多酚物质,可口服,具有抗氧化[1]、保护心血管[2]和抗炎活性。当细胞受到 UVB 辐射时,Veratric acid 能够减少上调的 COX-2 表达,...