Hefei TNJ chemical industry co.,ltd
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CAS NO.71-00-1
L-Histidine is an essential amino acid that cannot be formed by other nutrients, and must be in the diet to be available to the body.
CAS Number: 71-00-1
EINECS NO.: 200-745-3
FEMA:3694
Molecular Formula: C6H9N3O2
Molecular Weight: 155.15
Other name: L-2-Amino-3-(4-imidazolyl)propionic acid
InChI: 1S/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,5H,1,7H2,(H,8,9)(H,10,11)/t5-/m0/s1
Characteristics: White crystals or crystalline powder; acid taste. ,soluble in water. practically insoluble in ether or ethanol.
Melting point: 282ºC
Water solubility: 41.6G/L(25ºC)
Specific rotation: 12.4º(C=11,6NHCL)
Specifications:
|
Item |
AJI97 |
USP34 |
|
Assay |
99.0~101.0% |
98.5~101.5% |
|
pH |
7.0~8.5 |
7.0~8.5 |
|
Specific rotation[a]D020 |
+12.0°~+12.8° |
|
|
[a]D025 |
|
+12.6°~+14.0°º |
|
Transmittance(T430) |
clear & colorless |
|
|
Chloride(Cl) |
≤0.02% |
≤0.05% |
|
Ammonium(NH4) |
≤0.02% |
|
|
Sulfate(SO4) |
≤0.02% |
≤0.03% |
|
Iron(Fe) |
≤10ppm |
≤30ppm |
|
Heavy metals(Pb) |
≤10ppm |
≤15ppm |
|
Arsenic |
≤1ppm |
|
|
Other amino acids |
conforms |
|
|
Loss on drying |
≤0.20% |
≤0.20% |
|
Residue on ignition |
≤0.10% |
≤0.40% |
|
Organic volatile impurities |
|
conforms |
Function:
1. L-Histidine is an extremely important component of amino acid infusion and comprehensive amino acid formulations for the treatment of gastric ulcers, anemia and allergies
2. L-Histidine can be used for prevention and treatment of anemia.
3. L-Histidine can reduce gastric acidity, ease gastrointestinal surgery pain, vomiting and stomach during pregnancy to reduce the burning sensation, inhibition of gastrointestinal ulcers caused by the autonomic nervous. For allergic diseases such as asthma, L-histidine also has effect.
4. L-Histidine can dilate blood vessels, lower blood pressure, angina, heart failure and other diseases for clinical practice.
Package:25kg/drum or as your request.
Storage Situation: Stored in a cool and dry well-closed container. Keep away from moisture and strong light/heat.
Shelf Life: Two years when properly stored.
Delivery: within two weeks after receiving your prepayment.
Service we can provide:
1.Mixed container, we can mix different items in one container.
2.Quality control, before shipment, free sample for test. after shipment, keep sample for 3 years
3.Prompt shipment with professional documents
4.Packing as your request, with photo before shipment.
L-Histidine is an essential amino acid that cannot be formed by other nutrients, and must be in the diet to be available to the body.
CAS Number: 71-00-1
EINECS NO.: 200-745-3
FEMA:3694
Molecular Formula: C6H9N3O2
Molecular Weight: 155.15
Other name: L-2-Amino-3-(4-imidazolyl)propionic acid
InChI: 1S/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,5H,1,7H2,(H,8,9)(H,10,11)/t5-/m0/s1
Characteristics: White crystals or crystalline powder; acid taste. ,soluble in water. practically insoluble in ether or ethanol.
Melting point: 282ºC
Water solubility: 41.6G/L(25ºC)
Specific rotation: 12.4º(C=11,6NHCL)
Specifications:
|
Item |
AJI97 |
USP34 |
|
Assay |
99.0~101.0% |
98.5~101.5% |
|
pH |
7.0~8.5 |
7.0~8.5 |
|
Specific rotation[a]D020 |
+12.0°~+12.8° |
|
|
[a]D025 |
|
+12.6°~+14.0°º |
|
Transmittance(T430) |
clear & colorless |
|
|
Chloride(Cl) |
≤0.02% |
≤0.05% |
|
Ammonium(NH4) |
≤0.02% |
|
|
Sulfate(SO4) |
≤0.02% |
≤0.03% |
|
Iron(Fe) |
≤10ppm |
≤30ppm |
|
Heavy metals(Pb) |
≤10ppm |
≤15ppm |
|
Arsenic |
≤1ppm |
|
|
Other amino acids |
conforms |
|
|
Loss on drying |
≤0.20% |
≤0.20% |
|
Residue on ignition |
≤0.10% |
≤0.40% |
|
Organic volatile impurities |
|
conforms |
Function:
1. L-Histidine is an extremely important component of amino acid infusion and comprehensive amino acid formulations for the treatment of gastric ulcers, anemia and allergies
2. L-Histidine can be used for prevention and treatment of anemia.
3. L-Histidine can reduce gastric acidity, ease gastrointestinal surgery pain, vomiting and stomach during pregnancy to reduce the burning sensation, inhibition of gastrointestinal ulcers caused by the autonomic nervous. For allergic diseases such as asthma, L-histidine also has effect.
4. L-Histidine can dilate blood vessels, lower blood pressure, angina, heart failure and other diseases for clinical practice.
Package:25kg/drum or as your request.
Storage Situation: Stored in a cool and dry well-closed container. Keep away from moisture and strong light/heat.
Shelf Life: Two years when properly stored.
Delivery: within two weeks after receiving your prepayment.
Service we can provide:
1.Mixed container, we can mix different items in one container.
2.Quality control, before shipment, free sample for test. after shipment, keep sample for 3 years
3.Prompt shipment with professional documents
4.Packing as your request, with photo before shipment.
