| 英文名稱(chēng) | protocatechuic acid |
|---|---|
| 中文名稱(chēng) | 原兒茶酸/3,4-二羥基苯甲酸 |
| CAS號 | 99-50-3 |
| 分子式 | C7H6O4 |
| 分子量 | 154.12 |
| 外觀(guān) | 白色粉末 |
| 熔點(diǎn) | 194 °C |
| 沸點(diǎn) | 410.7±35.0 °C | Condition: Press: 760 Torr |
| 酸度系數pKa | 4.45±0.10 | Condition: Most Acidic Temp: 25 °C |
| 英文名稱(chēng) | protocatechuic acid |
|---|---|
| 中文名稱(chēng) | 原兒茶酸/3,4-二羥基苯甲酸 |
| CAS號 | 99-50-3 |
| 分子式 | C7H6O4 |
| 分子量 | 154.12 |
| 外觀(guān) | 白色粉末 |
| 熔點(diǎn) | 194 °C |
| 沸點(diǎn) | 410.7±35.0 °C | Condition: Press: 760 Torr |
| 酸度系數pKa | 4.45±0.10 | Condition: Most Acidic Temp: 25 °C |
WKQ-0000697
中文名稱(chēng)：原兒茶酸
中文別名：3,4-二羥基苯甲酸
英文名稱(chēng)：protocatechuic acid
英文別名：Protocatechuic acid (8CI);3,4-Dihydroxybenzoic acid;1,2-Dihydroxybenzene-4-carboxylic acid;4,5-Dihydroxybenzoic acid;4-Carboxy-1,2-dihydroxybenzene;NSC 16631;Protocatechoic acid;
分子式：C7H6O4
分子量：154.12
CAS號：99-50-3
純度：HPLC≥98%
熔點(diǎn)：194 °C
沸點(diǎn)：410.7±35.0 °C | Condition: Press: 760 Torr
密度：1.559±0.06 g/cm3 | Condition: Temp: 20 °C Press: 760 Torr
酸系度數：4.45±0.10 | Condition: Most Acidic Temp: 25 °C
儲存條件：-20℃，干燥、避光、密封
規格：5mg10mg20mg50mg100mg500mg1g2g等應客戶(hù)需求包裝
供應單位：四川省維克奇生物科技有限公司
供應電話(huà)：028-81700200/4008005713
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| Simultaneous quantification of fourteen characteristic active compounds in Eucommia ulmoides Oliver and its tea product by ultra-high performance liquid chromatography coupled with triple quadrupole mass spectrometry (UPLC-QqQ-MS/MS) | ||
| 來(lái)源：SCI：FOOD CHEMISTRY | 作者：Xin-Yue Li | 備注：影響因子：7.514 |
| 引用描述 | ||
Aucubin, geniposidic acid, protocatechuic acid, chlorogenic acid, caffeic acid, geniposide, pinoresinol diglucoside, genipin, ferulic acid, liriodendrin, rutin, syringaresinol, quercetin, kaempferol from Weikeqi Biological Technology Co., Ltd. (Chengdu, China). All standards were identified with the purity higher than 98%. Methanol and formic acid of UPLC-MS grade were supplied by Fisher Scientific (Geel, Belglum). | ||
| A sustainable and integrated natural surfactant mediated microwave-assisted extraction technique enhances the extraction of phytochemicals from plants | ||
| 來(lái)源：SCI：INDUSTRIAL CROPS AND PRODUCTS | 作者：Zelin Wang | 備注：影響因子：5.645 |
| 引用描述 | ||
The standards of eleutheroside E, protocatechuic acid, isofraxidin, chlorogenic acid and eleutheroside B were obtained from Sichuan Weikeqi-Biotech Co., Ltd., and their purities were all ≥ 98%. Millipore Milli-Q Water Purification system was utilized to produce deionized water (at a resistance of 18.25 MX) for HPLC. The absolute ethyl alcohol was provided by Tianli Chemical Reagent Co.,Ltd. | ||
| Leaf and Flower Extracts of Six Michelia L.: Polyphenolic Composition, Antioxidant, Antibacterial Activities and in Vitro Inhibition of α-Amylase and α-Glucosidase | ||
| 來(lái)源：SCI：CHEMISTRY & BIODIVERSITY | 作者：Tianzhu Liao | 備注：影響因子：2.408 |
| 引用描述 | ||
Folin-Ciocalteureagent,gallic acid, catechinand otherpolyphenolicstandardswere purchasedfrom SichuanWeikeqiBiologicalTechnologyCo., Ltd. (China).1,1-Diphenyl-2-picrylhydrazyl(DPPH),2,2’-azinobis(3-ethyl-benzothiazoline-6-sulfonicacid)diammoniumsalt(ABTS),2,4,6-tris(2-pyridyl)-s-triazine(TPTZ),trolox,α-amylase,α-glucosidaseand 4-nitrophenyl-α-D-gluco-pyranoside(α-PNPG)wereobtainedfromSigma–Aldrich(USA). | ||
| Novel Green Three-Constituent Natural Deep Eutectic Solvent Enhances Biomass Extraction from Acanthopanax senticosus and the Extraction Mechanism | ||
| 來(lái)源：SCI：ACS Sustainable Chemistry & Engineering | 作者：Hong_yi Pan | 備注：影響因子：8.198 |
| 引用描述 | ||
The standards of isofraxidin, eleutheroside E, eleutheroside B, protocatechuic acid, chlorogenic acid, and ursolic acid were all obtained from Sichuan Weikeqi-Biotech Co., Ltd. (Chengdu, China), and the purity was ≥98%. Macroporous resins such as NKA-9, D101, HPD-400, ADS-17, and AB-8 were obtained by Nankai Hecheng S&T (Tianjin, China). | ||
| Pi-Dan-Jian-Qing Decoction Ameliorates Type 2 Diabetes Mellitus Through Regulating the Gut Microbiota and Serum Metabolism | ||
| 來(lái)源：SCI：Frontiers in Cellular and Infection Microbiology | 作者：Xie Xuehua | 備注：影響因子：5.293 |
| 引用描述 | ||
enzyme-linked immunosorbent assay (ELISA) kit was obtained from Multi Science Biotechnology Co., Ltd. (Hangzhou, China). Reference standards of astragaloside, heterophyllin B, atractylodin, harpagide, berberine, baicalin, puerarin, quercetin, protocatechuic acid and tanshinone II A were obtained from Sichuan Weikeqi Biological Technology Co., Ltd. (Sichuan, China). | ||
| Two phenolic antioxidants in Suoyang enhance viability of ?OH-damaged mesenchymal stem cells: comparison and mechanistic chemistry | ||
| 來(lái)源：SCI：Chemistry Central Journal | 作者：Yulu Xie | 備注：影響因子：4.215 |
| 引用描述 | ||
Luteolin-7-O-β-D-glucoside (CAS 68321-11-9, 98%), protocatechuic acid (CAS 99-50-3, 98%), catechin (CAS 154-23-4, 98%), epicatechin (CAS 18829-70-4, 98%), naringenin (CAS 480-41-1, 98%), isoquercitrin (CAS 482-35-9, 98%), and phlorizin (CAS 60-81-1, 98%) were purchased from Weikeqi Biological Technology Co., Ltd. (Chengdu, China). Gallic acid (CAS 149-91-7, 98%) was purchased from Shanghai Aladdin Chemistry Co., Ltd. (Shanghai, China) | ||
| Comparative assessment of phytochemical profiles, antioxidant and antiproliferative activities of Sea buckthorn (Hippophaë rhamnoides L.) berries | ||
| 來(lái)源：SCI：FOOD CHEMISTRY | 作者：Ruixue Guo | 備注：影響因子：4.052 |
| 引用描述 | ||
Quercetin (QE), gallic acid (GA), Folin-Ciocalteu reagent, 2,2′-azobis-amidinopropane (ABAP), and dichlorofluorescin diacetate (DCFH-DA) were purchased from Sigma-Aldrich Inc. (St. Louis, USA). Protocatechuic acid (PA), ferulic acid (FA), epicathin (Epi), catechin (CE), QE glycosides, isorhamnetin (IS) glycosides and kaempferol (KA) glycosides were purchased from Weikeqi Biological (Chengdu, China). Human liver cancer cells HepG2 were purchased from American Type Culture Collection (ATCC, Manassas, VA, USA). | ||
| Identification of prototypes from Ligustri Lucidi Fructus in rat plasma based on a data-dependent acquisition and multicomponent pharmacokinetic study | ||
| 來(lái)源：SCI：BIOMEDICAL CHROMATOGRAPHY | 作者：Yucheng Wang | 備注：影響因子：1.728 |
| 引用描述 | ||
Reference compounds, comprising specnuezhenide, oleuropein, nuezhenidic acid, ligustroflavone, G13, oleoside 11-methyl ester, tyrosol, hydroxytyrosol, salidroside, acteoside, protocatechuic acid, galuteolin, apigenin, quercitrin, rutin, luteolin, quercetin, oleanolic acid, ursolic acid, betulin, emodinmonomethyl ether, 3β-O-acetylpomolic acid, oleonuezhenide, 6′-O-trans-cinnamoyl-8-epikingisidic acid, ligulucidumoside A, ligulucidumoside C, oleuropeinic acid, echinacoside, 3β-O-acetylpomolic acid, oleonuezhenide, 6′-O-trans-cinnamoyl-8-epikingisidic acid, ligulucidumoside A, ligulucidumoside C and geniposide (purity ≥98%), were provided by Yifang S&T Co. Ltd (Tianjin, China), the National Institutes for Food and Drug Control and Sichuan Weikeqi Pharmaceutical Technology Co. Ltd. Methanol and acetonitrile (chromatographic purity) were obtained from Fisher Scientific (Fair Lawn, NJ, USA). The Milli-Q water purification system (Millipore, Bedford, MA, USA) was used to produce Ultrapure-water. All reagents were analytical grade. | ||
| Embelia Laeta aqueous extract suppresses acute inflammation via decreasing COX-2/iNOS expression and inhibiting NF-κB pathway | ||
| 來(lái)源：SCI：JOURNAL OF ETHNOPHARMACOLOGY | 作者：Zhongmin Zhang | 備注：影響因子：4.36 |
| 引用描述 | ||
Indomethacin (Indo) was purchased from Shanxi Yun-Peng Pharmaceutical. Co., Ltd. (China). The reference standard of gallic acid (>98% purity, wkq20010905), protocatechuic acid (>98% purity, wkq20020706), catechin (>98% purity, wkq20021707), epicatechin (>98% purity, wkq20012203), rutin (>98% purity, wkq20030203) were purchased from Sichuan Weikeqi Biotechnology Co., Ltd. (China). All other reagents were of analytical purity grade or better. | ||
| A UPLC-MS Method for Simultaneous Determination of Geniposidic Acid, Two Lignans and Phenolics in Rat Plasma and its Application to Pharmacokinetic Studies of Eucommia ulmoides Extract in Rats | ||
| 來(lái)源：SCI：EUROPEAN JOURNAL OF DRUG METABOLISM AND PHARMACOKINETICS | 作者：Li, Yongjun | 備注：影響因子：1.563 |
| 引用描述 | ||
The reference standards of geniposidic acid (GA) and protocatechutic acid (PCA) (purity of 98 %) were purchased from the Sichuan Weikeqi Biological Technology Co., Ltd. (Chengdu, China). Standard pinoresinol di-O-b-D-glucopyranoside (PDG) was purchased from the Shanghai Shunbo Biological Technology Co | ||
