荧光素 AR

Name: 荧光素
SKU: S19117

Fluorescein

品牌：桔子

产品编号：S19117

CAS号：2321-07-5

分子式：C20H12O5

分子量：332.31

MDL：MFCD00005050

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产品名称 :	荧光素
英文名称 :	Fluorescein
参考名称 :	3',6'-二羟基-3H-螺[异苯并呋喃-1,9'-黄嘌呤]-3-酮
参考英文名称 :	3',6'-Dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one
CAS号 :	2321-07-5
分子式 :	C20H12O5
分子量 :	332.31
SMILES :	OC1=CC=C2C(OC3=CC(O)=CC=C3C22OC(=O)C3=CC=CC=C23)=C1
MDL NO :	MFCD00005050
PubChem CID :	16850
InChIKey :	GNBHRKFJIUUOQI-UHFFFAOYSA-N
储存条件 :	RT
参考别名 :	荧光素; Uranine; Solvent Yellow 94; Yellow fluorescein

外观 / 形态 :	Fluorescein appears as yellow amorphous solid or orange-red crystals. Latter have greenish-yellow fluorescence by reflected light. Insoluble in water. Soluble in dilute aqueous bases. Very dilute alkaline solutions exhibit intense, greenish-yellow fluorescence by reflected light. Low toxicity. May be sensitive to prolonged exposure to light.；Solid；Yellowish-red to red solid; [Merck Index] Orange powder; [MSDSonline]
颜色 / 形态 :	Red, orthorhombic prisms；Yellowish-red to red powder；Orange-red, crystalline powder
熔点 :	315 dec °C；315 °C；315 °C (decomposes)；Decomposes at 554 °F. In sealed tube, melts at 597-601 °F with decomposition (NTP, 1992)
溶解性 :	Slightly soluble in ethanol, diethyl ether; very soluble in acetone; soluble in pyridine, methanol；Insoluble in benzene, chloroform, ether. Soluble in hot alcohol or glacial acetic acid; also soluble in alkali hydroxides or carbonates with a bright green fluorescence appearing red by transmitted light.；In water, 50 mg/L at 20 °C
LogP :	3.4
热分解说明 :	When heated to decomposition it emits acrid smoke and irritating fumes.

资料来源：荧光素产品资料页；来源页标注 PubChem CID 16850，资料日期 2026-10-11。