Ergothioneine possesses various physiological functions, including scavenging free radicals, detoxification, maintaining DNA synthesis, regulating cellular immunity, and maintaining normal cell growth. It also improves sleep and enhances cellular energy, and is widely used in the food, cosmetic, and pharmaceutical industries. Its application in anti-aging cosmetics has received ongoing research attention.

		Certificate of Analysis
产品名称: product name:		L-麦角硫因 (Dr. Ergo® ) L-Ergothioneine (Dr. Ergo® )
CAS  号: CAS number:		497-30-3				参考: Reference:			企标 In-house
批次号: Batch number:		YGAF25090401				批次数量: Batch quantity:			60kg
生产日期: Date of Production:		2025 年 9 月 4 日 Sep. 4, 2025				有效日期: Date of Expiration:			2027 年 9 月 3 日 Sep. 3, 2027
类型 Type		生产商                  o贸易商                  o其他       Manufacturer                     oTrader                                oOther
项目 Items				标准 Specifications		测试结果 Test Result			检测方法 Methods
含量 Assay				≥99.9%		99.99%			HPLC（外标法） HPLC (External Standard Method)
理化控制: Physical & Chemical Control:
外观 Appearance				白色晶体 White crystal			合格 Conform				肉眼观察 Visual observation
气味 Smell				特征气味 Characteristic odor			合格 Conform				鼻闻气味 Nose smells
鉴别 IR Identification IR				符合标准 Compliant with standards			合格 Conform				红外光谱 IR
pH(50mg/mL,20℃)				5.5-7.5			6.19				pH 计 pH meter
熔点（分解） Melting Point (Decompose)				270-271℃			270.1 ℃				熔点检测仪 Melting point detector
旋光度 Optical Rotation				[α]D≥(+)122°（c= 1,H2O）			+124.9 °				旋光仪 Polarimeter
粒径 Mesh size				50 目通过率 100% 100% pass 50 mesh			合格 Conform				过筛 Sieve
堆积密度 Density				0.55-0.75g/ml			合格 Conform				堆积密度仪 Bulk density meter
干燥失重 Loss on Drying				<0.5%			0.03%				105℃ , 2h
总溶剂残留 Total Residual Solvents				≤100 ppm			99.47ppm				GC
重金属控制:
Heavy Metals Control:
砷 Arsenic				≤1 ppm			合格 Conform				ICP
铅 Lead				≤1 ppm			合格 Conform				ICP
汞 Mercury				≤0.1 ppm			合格 Conform				ICP
镉 Cadmium				≤0.3 ppm			合格 Conform				ICP
总重金属 Total Heavy Metals				≤10 ppm			合格 Conform				ICP
微生物控制: Microbiological Control：
大肠杆菌 E. coli				不得检出 Negative			合格 Conform				USP<62>
金黄色葡萄球菌 S. aureus				不得检出 Negative			合格 Conform				USP<62>
沙门氏菌 Salmonella				不得检出 Negative			合格 Conform				USP<62>
铜绿假单胞菌 P. aeruginosa				不得检出 Negative			合格 Conform				USP<62>
总大肠菌群 Total Coliform				<100 CFU/g			合格 Conform				AOAC
霉菌和酵母菌总数 Total Yeast and Mold Count				≤100 CFU/g			合格 Conform				USP<61>
总菌落数 Total Viable Aerobic Count				≤1000 CFU/g			合格 Conform				USP<61>
包装:无菌袋包装，外包铝箔袋。 Packing: Sterile bag packaging, wrapped in aluminum foil bags.
存储:密封储存于阴凉干燥处，避免阳光照射和潮湿。 Storage: Sealed and stored in cool and dry place, protect from sunlight and moisture.
ISO9001        ISO14001      ISO45001      ISO22000          GMP            VEGAN          HALAL         KOSHER