Overview
Sennidin is a naturally occurring anthraquinone compound derived from senna plants (Cassia spp.), notably Cassia angustifolia and Cassia acutifolia. It exists as two stereoisomers, Sennidin A and B, which serve as aglycone precursors to sennosides—the active components in many stimulant laxatives. Historically used in traditional medicine, sennidin's pharmacological properties were scientifically validated in the 20th century, leading to its standardized extraction and synthetic modification for modern pharmaceuticals. As a B2B chemical, sennidin is typically supplied in powder form with ≥95% purity for pharmaceutical intermediates. Its production involves extraction from senna leaves followed by hydrolysis of sennosides, though synthetic routes are emerging. The compound is regulated under pharmaceutical-grade standards in major markets like the US FDA and EU Pharmacopoeia.
Physical and Chemical Properties
Sennidin exhibits typical anthraquinone characteristics, including a conjugated ring system responsible for its yellowish-brown color and UV-Vis absorption at ~270 nm and 340 nm. Both isomers (A/B) share the same molecular formula but differ in stereochemistry at C-10 and C-10'. The crystalline powder is thermally stable below 200°C but decomposes upon melting, requiring careful handling during formulation. Its solubility profile favors organic solvents like methanol (50 mg/mL) and dimethyl sulfoxide (DMSO), while water solubility is negligible (<0.1 mg/mL). This property dictates its use in ethanol-based tinctures or solid dosage forms. Sennidin shows moderate acidity (pKa ~8.5) due to phenolic hydroxyl groups, influencing its extraction and purification processes.
Main Applications
Over 90% of sennidin production supplies the pharmaceutical industry as a precursor to sennosides (e.g., sennosides A-D), which are FDA-approved stimulant laxatives in products like Senokot and Ex-Lax. These drugs work by stimulating colonic peristalsis and inhibiting water absorption in the large intestine. Sennidin itself has mild laxative effects but is primarily valued for its efficient conversion to more potent glycosylated derivatives. In traditional medicine, sennidin-rich senna extracts treat constipation and bowel preparation. Emerging research explores its potential as an anti-inflammatory agent and in veterinary medicine. Non-pharmaceutical uses include analytical reference standards and niche cosmetic applications for purported detoxification properties.
Safety and Storage
Sennidin requires cautious handling as powdered forms may cause respiratory or dermal irritation. Safety data sheets (SDS) recommend NIOSH-approved N95 masks, gloves, and goggles during processing. Chronic occupational exposure correlates with melanosis coli (benign colon pigmentation) in epidemiological studies, warranting workplace exposure limits below 0.1 mg/m³. Proper storage involves amber glass or HDPE containers with nitrogen flushing to prevent oxidation. Stability studies indicate 3-year shelf life at 2-8°C with <2% degradation. Excursions to 25°C/60% RH may accelerate decomposition, visible as darkening. For transport, classify as NON-Hazardous per IATA/IMDG, though some carriers require "Keep Dry" labeling due to hygroscopicity.
B2B Procurement Guide
When sourcing sennidin, prioritize suppliers with cGMP certification for pharmaceutical intermediates. Key specifications include HPLC purity (≥98%), heavy metals (<10 ppm), and residual solvents (methanol <3000 ppm per ICH Q3C). Isomer ratios (A:B) should match your formulation needs—typically 1:1 for generic sennoside production. Batch-to-batch consistency is critical; request COAs with chromatograms and microbial testing (TAMC <1000 CFU/g). For international shipments, ensure compliance with CITES regulations as some senna species are protected. Spot prices fluctuate with senna leaf harvests (majorly from India/Sudan), so consider annual contracts during Q1-Q2 post-harvest. Payment terms of LC at sight are common for new suppliers.
Related Manufacturers
- 主营：夹竹桃、异奥卡、香附酮、管花苷、皂苷元、樱桃苷、儿茶素、白鲜碱、紫檀芪、木栓醇、豆甾醇、植酸锌、苏木素、泽泻醇、龙血素、黄柏酮、蚱蜢酮、防己碱、葫芦素、乌甲素、印楝素、厚朴酚、标准品、双黄酮、芝麻素
- 主营：番泻苷元B、对照品、标准品
- 主营：中药标准品、标准品对照品、天然化合物、番泻苷元A、标准品、分析试剂、细胞实验、动物实验、中药提取物、单体化合物、科研实验用
- 主营：酒渣碱、异常山乙素、芦丁标准品、番泻苷元A、对照品标准品
- 主营：精萃宝对照品、一叶萩碱、羟基红花黄色素A、三叶豆紫檀苷、松果菊苷、马钱苷、莫诺苷、苍术素、苍术酮、盐酸血根碱、盐酸白屈菜红碱、药根碱、藁本内酯、欧当归内酯A、高丽槐素
- 主营：番泻苷元A、白蜡树素、百两金素、半齿泽兰素
- 主营：桉油精、标准品、薄荷脑、番泻苷元B、中药对照品、白花前胡丙素、白藜芦醇三甲醚
- 主营：大黄酚、丹参酮、苏木素、大豆苷、橙皮苷、刺五加苷、安石榴苷、阿魏酸、朝藿定、单宁酸、胞嘧啶、丹参素、苍术素、茶黄素、杨黄素、小檗碱、标准品、茄边碱、茶多酚、丹酚酸c、朝霍定a、阿奇霉素、蝙蝠葛碱、倒捻子素、地奥司明
- 主营：芍药素、花姜酮、氨基辛酸、葡萄糖苷、半乳糖苷、阿拉伯糖苷、飞燕草素、天竺葵素、矮牵牛素、天竺葵色素、去氢钩藤碱、氯化锦葵色素
- 主营：标准品、中药对照品、槲皮万寿菊素、番泻苷元B、新绿原酸
- 主营：标准品、中药对照品、试剂、精油、技术服务、提取定制、化合物合成、分析检测、色谱柱、天然产物
- 主营：芍药苷、栀子苷、神经酸、银杏系列单体
- 主营：人参皂苷、标准品、橙皮油素、芥子碱硫氰酸盐
- 主营：标准品、细辛脂素、百两金素、桃叶珊瑚苷、延胡索乙素、脱氢紫堇碱
- 主营：八角莲、奎尼酸、紫堇碱、银椴苷、豨莶苷、哈巴苷、宝藿苷、升麻素、四叶参、吴茱萸、儿茶素、齿孔酸、络塞定、赤松素、榄香素、茄边碱、十一糖、树脂醇、大戟素、丹参酮、苦参醇、紫苏葶、女贞子、鞣花酸、艾黄素