Product No.: HI223CAS: 71-00-1In Stock
L-组氨酸/ L-Histidine
This product undergoes strict bacterial endotoxin and microbial limit controls, suitable for biologics and injectable-grade R&D with stringent pyrogen requirements.
Select Spec* COA batch numbers are updated in real-time
Select Spec
* COA batch numbers are updated in real-time5kg/Drum
$544.00
Stock: 98 unit
25kg/Drum
$2,584.00
Stock: 100 unit
Quantity
Remaining 100 unit
Selected Configuration1kg/Bag × 1
Total$141.00
Application Scenarios
CHO Cell CultureVaccine ProductionMonoclonal Antibody R&D
Quality Specifications
性状/ Description
白色结晶或结晶性粉末；无臭。 White crystals or crystalline powder，odorless.
鉴别/ Identification
本品的红外光吸收图谱应与标准图谱一致。 Compare the infrared absorption spectrum of the sample with that of the standard atlas.
溶液外观/Appearance of solution
澄清无色/ Clear and colorness
比旋度/ Specific rotation [α]D20 (EP)
+11.4° ~ +12.4°
比旋度/ Specific rotation [α]D25(USP)
+12.6° ~ +14.0°
酸度/ pH
7.0 ~ 8.5
溶液的透光度/ Transmittance
≥98.0%
氯化物/ Chloride (Cl)
≤ 200ppm
硫酸盐/ Sulfate (SO4)
≤ 200ppm
铵盐/ Ammonium (NH4)
≤ 0.02%
铁盐/ Iron（Fe）
≤ 10ppm
重金属/ Heavy metals (Pb)
≤ 10ppm
砷盐/ Arsebnic（As2O3）
≤ 1ppm
干燥失重/ Loss on drying
≤ 0.2%
炽灼残渣 Residue on ignition (sulfated)
≤ 0.1%
有关物质（USP） Related substances(USP)
单个未知杂质 Any other impurity ≤0.5%; 未知总杂质 Total other impurities ≤ 2.0%
有关物质（EP） Related substances(EP)
单个未知杂质 Any other impurity ≤0.5%
含量（EP）/Assay(EP)
98.5% ～ 101.0%
微生物限度 Microbiological examination
需氧菌总数Total aerobic microbial count ≤50 CFU/g; 霉菌和酵母菌总数 Total yeasts&mould count ≤ 10 CFU/g
细菌内毒素/ Endotoxin
≤ 20 EU/g