90-33-5 甲基伞形酮 7 - 羟基 - 4 - 甲基香豆素 HPLC 荧光指示剂日化增白原料山西永津 新品

山西永津集团有限公司稳定供应4 - 甲基伞形酮（CAS90-33-5，别名甲基伞形酮、7 - 羟基 - 4 - 甲基香豆素、4 - 甲基 - 7 - 羟基苯并吡喃酮），产品纯度稳定≥99%，浅黄白色结晶粉末，紫外荧光特性优异，批次杂质低、指标稳定，可提供全套 COA 质检报告、合规资质文件，支持 1kg 试样、25kg 纸板桶标准包装及吨级大批量现货直发。本品属于香豆素类荧光活性单体，紫外激发下具备强蓝色荧光，下游应用覆盖多核心行业：医药领域用作体外荧光检测探针、细胞荧光染色试剂、肝药酶抑制剂原料药，用于抗炎、抗氧化、骨质疏松改善类药物合成，也是药物溶出度荧光指示剂；日化行业作为织物、洗涤、护肤品专用荧光增白剂，提升面料白度、提亮护肤基底色泽；精细染料行业合成香豆素系荧光染料、激光染料、荧光标记显色剂；分析化学领域用于液相色谱 HPLC 荧光检测器专用标准品、水质 / 微生物快速检测显色底物；农药领域合成植物抗病诱导剂、农用荧光示踪助剂；科研实验室广泛用于生物荧光成像、酶活检测、有机光电发光材料合成；同时可制备食品荧光保鲜助剂、树脂荧光改性单体。集团自有标准化香豆素合成生产线，库存充足、交付周期短，长期为国内外制药、日化印染、色谱试剂、光电新材料企业稳定供货。

Shanxi Yongjin Group Co., Ltd. stably supplies 4-Methylumbelliferone (CAS 90-33-5, also named Methylumbelliferone,7-Hydroxy-4-methylcoumarin,4-Methyl-7-hydroxybenzopyranone) with purity over 99%. It is pale yellowish white crystalline powder with excellent UV fluorescence performance, low impurities and consistent batch indicators. We provide full COA test certificates and compliance documents, supporting 1kg lab samples, 25kg fiber drum standard packages and bulk ton-level spot delivery. As coumarin fluorescent monomer, it emits strong blue fluorescence under UV excitation, widely applied in multiple core industries: In pharmaceutical field, it serves as in-vitro fluorescent detection probe, cell fluorescent staining reagent and hepatic enzyme inhibitor API, used for synthesis of anti-inflammatory, antioxidant and anti-osteoporosis drugs, as well as fluorescent indicator for drug dissolution test; In daily chemical industry, it acts as fluorescent whitening agent for textiles, detergents and skin care products to boost fabric whiteness and brighten cosmetic base tone; For fine dye industry, it synthesizes coumarin fluorescent dyes, laser dyes and fluorescent labeling chromogenic agents; In analytical chemistry, it is standard reference material for HPLC fluorescence detector and chromogenic substrate for rapid water & microorganism detection; In pesticide field, it manufactures plant disease resistance inducer and agricultural fluorescent tracing additive; In research labs, it is widely adopted in biological fluorescence imaging, enzyme activity assay and organic photoluminescent material synthesis. It can also be processed into food fluorescent preservation auxiliary and fluorescent modified resin monomer. Our group owns standardized coumarin synthesis production lines with sufficient inventory and short lead time, offering long-term stable supply for pharmaceutical, textile & daily chemical, chromatographic reagent and optoelectronic new material enterprises worldwide.