原儿茶酸 (CAS No.99-50-3)
- 物化性质
- 白色至淡灰色或米色至棕色结晶性粉末。熔点197-200 °C(分解),沸点约237.46 °C,相对密度1.54,折射率1.6400(估算)。水中溶解度约20 g/L,溶于热水、乙醇和乙醚,微溶于冷水。酸度系数(pKa)4.48(25 °C),分子量154.12。对空气敏感,需低于30°C储存,与强氧化剂、强碱不相容。
- 技术参数
- 纯度 ≥99%,单杂<0.1% 熔点 197-200 °C(分解) 沸点约237.46 °C,相对密度1.54 酸度系数(pKa)4.48(25 °C)
- 储存条件
- 低于30°C保存,对空气敏感
English description(英文原文,共 1278 字符)
Product Name:Protocatechuic acid
English Name:Protocatechuic acid
CAS No.:99-50-3
Aliases:3,4-Dihydroxybenzoic acid, Catechol-4-carboxylic acid, 4-Carboxycatechol
Molecular Formula:C7H6O4
Physical Properties:White to pale gray or beige to brown crystalline powder. Melting point 197-200 °C (dec.), boiling point approx. 237.46 °C, relative density 1.54, refractive index 1.6400 (estimated). Solubility in water approx. 20 g/L; soluble in hot alcohol and ether; slightly soluble in cold water. Acid dissociation constant (pKa) 4.48 (25 °C), molecular weight 154.12. Air-sensitive, store below 30 °C; incompatible with strong oxidizing agents and strong bases.
Uses:Protocatechuic acid is a natural phenolic acid compound with antioxidant, antibacterial and anti-inflammatory activities. It is used as an intermediate for the synthesis of pharmaceuticals and fine chemicals in the pharmaceutical industry. In research and quality control, it is commonly used as a reference substance or standard for analytical methods such as HPLC.
Technical Specifications:
Purity ≥99%, single impurity <0.1%
Melting point 197-200 °C (dec.)
Boiling point approx. 237.46 °C, relative density 1.54
Acid dissociation constant (pKa) 4.48 (25 °C)
Storage: store below 30 °C, air-sensitive
English Name:Protocatechuic acid
CAS No.:99-50-3
Aliases:3,4-Dihydroxybenzoic acid, Catechol-4-carboxylic acid, 4-Carboxycatechol
Molecular Formula:C7H6O4
Physical Properties:White to pale gray or beige to brown crystalline powder. Melting point 197-200 °C (dec.), boiling point approx. 237.46 °C, relative density 1.54, refractive index 1.6400 (estimated). Solubility in water approx. 20 g/L; soluble in hot alcohol and ether; slightly soluble in cold water. Acid dissociation constant (pKa) 4.48 (25 °C), molecular weight 154.12. Air-sensitive, store below 30 °C; incompatible with strong oxidizing agents and strong bases.
Uses:Protocatechuic acid is a natural phenolic acid compound with antioxidant, antibacterial and anti-inflammatory activities. It is used as an intermediate for the synthesis of pharmaceuticals and fine chemicals in the pharmaceutical industry. In research and quality control, it is commonly used as a reference substance or standard for analytical methods such as HPLC.
Technical Specifications:
Purity ≥99%, single impurity <0.1%
Melting point 197-200 °C (dec.)
Boiling point approx. 237.46 °C, relative density 1.54
Acid dissociation constant (pKa) 4.48 (25 °C)
Storage: store below 30 °C, air-sensitive
共 1 家生产厂家、批发商,
1 条供应报价
供应报价
常见问题
- 原儿茶酸的 CAS 号是多少?
- 原儿茶酸的 CAS 号是 99-50-3。
- 原儿茶酸的分子式和分子量是什么?
- 原儿茶酸的分子式为 C7H6O4。
- 原儿茶酸的英文名称是什么?
- 原儿茶酸的英文名称为 Protocatechuic acid。
- 原儿茶酸还有哪些别名?
- 原儿茶酸又称 3,4-二羟基苯甲酸、邻苯二酚-4-羧酸、4-羧基邻苯二酚。
- 原儿茶酸有哪些供应商和生产厂家?
- 掌上化工当前收录 1 条原儿茶酸供应报价,来自 1 家供应商,可按地区、纯度、级别筛选对比。
- 原儿茶酸的供应商主要分布在哪些地区?
- 原儿茶酸的供应商主要分布在 上海市(1 条) 等地。
- 原儿茶酸有哪些级别可选?
- 平台上原儿茶酸的供应级别包括 工业级。
- 原儿茶酸的报价单位是什么?
- 原儿茶酸的报价单位主要有 千克。
- 哪里可以查到原儿茶酸的价格?
- 掌上化工原儿茶酸产品页汇总了各供应商的最新报价与规格,地址:/chemicals/99-50-3/。部分供应商价格为电议,可通过页面上的询价功能直接获取。
以上信息由平台根据收录的产品数据自动生成,数据更新时间 。 价格与库存由供应商自行发布,实际交易请以询价结果为准。
没找到合适的供应商?
发布采购需求,让供应商主动联系你。我们会在 1 个工作日内跟进。
发布原儿茶酸采购需求