| CAS: | 98-03-3 | ||||||||||||||||||
| 分子式: | C5H4OS | ||||||||||||||||||
| 分子量: | 112.15 | ||||||||||||||||||
| 沸点: | 198℃ | ||||||||||||||||||
| 中文名称: |
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| 英文名称: |
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| 性质描述: | 油状液体。沸点198℃,93-94℃(2.67kPa),44-45℃(0.133kPa),相对密度1.215(21/21),折光率1.5920,闪点77℃。易溶于醇、苯、醚,微溶于水。有类似杏仁味。 | ||||||||||||||||||
| 生产方法: | 由噻吩与二甲基甲酰胺在三氯氧磷存在下缩合,经水解、中和、精制而得。将噻吩和二甲基甲酰胺加入反应锅中,在15℃以下缓缓加入三氯氧磷,逐渐升温至80-90℃,保温3h后,冷却至30℃,加入冰水水解。再经30%氧氧化钠中和,静置分层,水层用四氯化碳提取,提取液经洗涤脱水、回收溶剂、减压蒸馏,得2-噻吩吩醛。 | ||||||||||||||||||
| 用途: | 用来在有机化合物中引入噻吩基团,例如,将噻吩基团引入二甲基四氢嘧啶。所得产物与双羟萘酸成盐即得制广谱驱虫药噻嘧啶。 |
| 货号 | 品牌 | 产品名称 | 规格 | 包装、参考价格 | 详情 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| T819150 | MACKLIN | 2-噻吩甲醛 | 98% | 33元/25ml; 64元/100ml; 270元/500ml; 1300元/2.5L; | 展开 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
储存:2~8°C 状态:无色到黄色或棕色液体 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| T0725 | TCI | 2-Thiophenecarboxaldehyde (stabilized with HQ) | >98.0%(GC) | 140元/25ML; 380元/100ML; 1250元/500ML; | 展开 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| 124605 | J&K | 2-Thiophenecarboxaldehyde | 98% | 72元/25G; 124元/100G; 464元/500G; | 展开 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| A14344 | Alfa Aesar | Thiophene-2-carboxaldehyde | 98+% | 588元/100g; 2791元/500g; 5097元/1000g; | 展开 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
应用 备注 基本信息 MDL EINECS 分子式 分子量 沸点 闪点 密度 折射率 灵敏度 形态 溶解性 Beilstein GHS危害和防范说明 GHS符号 Hazard Statements Precautionary Statements 安全信息 危险类别 安全等级 欧盟危险品标志 RTECS TSCA | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| T32409 | Sigma-Aldrich | 2-Thiophenecarboxaldehyde | 98% | 294.34元/25 G; 405.04元/100 G; | 展开 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| PHR2083 | Supelco | Pyrantel Impurity C | Pharmaceutical Secondary Standard; Certified Reference Material | 5369.15元/50 MG; | 展开 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
产品说明 一般描述 Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards 分析说明 These secondary standards offer multi-traceability to the USP, EP and BP primary standards, where they are available. 其他说明 This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis. 附注 To see an example of a Certificate of Analysis for this material enter LRAB9058 in the Documents slot below. This is an example certificate only and may not be the lot that you receive. 基本信息
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| Y0002158 | Pyrantel Impurity C | CRS, European Pharmacopoeia (EP) Reference Standard | 1523.69元/ ; | 展开 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
产品说明 一般描述 This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia. 包装 Unit quantity: 30 mg. Subject to change. The product is delivered as supplied by the issuing Pharmacopoeia. For the current unit quantity, please visit the EDQM reference substance catalogue. 其他说明 Sales restrictions may apply. 基本信息
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