Nlekọta ahụike nke ahụike
1. Okwu Mmalite nke N-Acetyl-L-Tyrosine ntụ :
Acyl-L-tino acid dị mkpa, nke bụ ihe oriri dị mkpa maka metabolism na anụmanụ, na-eri nri, ọgwụ na kemịkalụ na kemịkalụ na kemịkalụ, wdg
2 . Ozi nkiti nke n-acetyl-l-tyrosine ntụ ntụ :
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Product Name
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N-Acetyl-L-tyrosine
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Specification
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98%
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Appearance
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White to off-white crystalline powder
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CAS no.
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537-55-3
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Molecular formula
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C11H13NO4
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Molecular weight
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223.23
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EINECS no.
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208-671-3
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Melting point
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149-152 ℃
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Boiling point
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531.3°C at 760 mmHg
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Flash
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275.1 ° C
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Vapor pressure
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4.07E-12mmHg at 25°C
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Specific rotation
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47.5° (c=2, water)
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3. Ọrụ:
1.n-tyrosine ntụ ntụ bụ amino acid dị mkpa
2.1.n-avetyl-l-tyrosine por bụ ihe dị mkpa ndu.
Enwere ike iji ntụ ntụ ahụ acetyl-l-tyrosine na interDetical ọgwụ, ọmụmụ ihe biochemical, sayensị, nyocha nke ugbo, ihe ọchụchọ
3. Diftion na nri, wdg.
4. 3.n-l-tyrosine ntụ na-enyere aka mee ka ahụ dị jụụ, mụbaa ike
5. 4.n-avetyl-L- tiytosine na-echebe akpụkpọ ahụ site na ụzarị ọkụ UV.
6 .
4.Application:
N-ACETLL-L-Tyrosine dị mkpa bụ ihe dị mkpa na-eme na-arụ ọrụ dị mkpa na metabolis, enwere ike ijikwa nri ụmụ mmadụ, nweta ndepụta, ọgwụ na kemịkalụ na kemịkalụ.
5.
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Items
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Standards
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Results
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Description
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White crystals or crystalline powder
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White crystalline powder
|
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Specific Rotation [a] D20"
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+46.5 o~ +49.0 o
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+47.8 o
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Transmittance
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≥96.0%
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97.8%
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Chloride(Cl)
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<0.020%
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<0.020%
|
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Ammonium
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<0.020%
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<0.020%
|
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Sulfate
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<0.020%
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<0.020%
|
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Iron (Fe)
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<30ppm
|
<30ppm
|
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重金属/Heavy metals
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≤10ppm
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<10ppm
|
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铅/Lead
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≤2ppm
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<2ppm
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镉/Cadmium
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≤1ppm
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< 1ppm
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汞/Mercury
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<0.1 ppm
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<0.lppm
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砷盐/Arsenic（AS203 ）
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≤1 ppm
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< 1ppm
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干燥失重/Loss on drying
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≤0.50%
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0.11%
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灼烧残渣/Residue on ignition
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<0.10%
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0.06%
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酸度/PH value
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2.0～3.0
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2.6
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含量/Assay
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99.0～101.0%
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100.1%
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L-酪氨酸/L- Tyrosine
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≤1.0%
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Conforms
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堆密度/Bulk density
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Only report
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0.50g/mL
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紧密度/Tapped density
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Only report
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0.80g/mL
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目数/Mesh
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Only report
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40
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菌落总板数/Total plate count
|
≤1000cfu/g
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<1000cfu/g
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酵母菌和霉菌/Yeast&Mould
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≤100cfu/g
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<100cfu/g
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大肠菌群/Coliforms
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In 25 gn.d.
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Conforms
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沙门氏菌/Salmonella
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In 25 gn.d.
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Conforms
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金黄色葡萄球/Staphylococcus aureus
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In 25 gn.d.
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Conforms
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大肠埃希氏菌/Escherichia coli
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Negativei
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Conforms
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洽测结论/Conclusion
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The result meet AJI92 standard, so it's the qualified product.
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QC: guo Shan Qa: Feng Li
Ngwaahịa : Ngwaahịa na-ere ọkụ
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