1.04351
L-Histidine
for biochemistry
Synonym(s):
His, (S)-2-Amino-3-(4-imidazolyl)propionic acid, NSC 137773
Select a Size
Select a Size
About This Item
Recommended Products
Quality Level
form
solid
potency
>5110 mg/kg LD50, oral (Rat)
pH
7.7 (20 °C, 10 g/L in H2O)
mp
282 °C (dec.) (lit.)
solubility
38.2 g/L
bulk density
430 kg/m3
storage temp.
2-30°C
SMILES string
N[C@@H](Cc1c[nH]cn1)C(O)=O
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
Looking for similar products? Visit Product Comparison Guide
Related Categories
1 of 4
This Item | 21878 | 21877 | 21884 |
|---|---|---|---|
| fluorescence λex 492 nm; λem 517 nm in 0.1 M Tris pH 8.0 (esterase) | fluorescence λex 492 nm; λem 517 nm in DMF | fluorescence λex 492 nm; λem 517 nm in 0.1 M Tris pH 8.0 | fluorescence λex 470 nm; λem 529 nm in 0.1 M Tris pH 8.0 (esterase) |
| solubility DMF: soluble, DMSO: soluble | solubility DMF: soluble, DMSO: soluble | solubility - | solubility DMF: soluble, DMSO: soluble, methanol: soluble |
| form solid | form powder | form powder | form - |
| storage temp. −20°C | storage temp. −20°C | storage temp. - | storage temp. −20°C |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 100 |
Biochem/physiol Actions
Analysis Note
Identity (IR-spectrum): passes test
Appearance: white to almost white, fine-crystalline powder or colorless crystals
Appearance of solution (50 g/l; water): clear and colorless
Spec. rotation (α 20/D, 110 g/l, hydrochloric acid 120 g/l, calc. on dried substance): +11.4 to +12.4
Chloride (Cl): ≤ 200 ppm
Sulfate (SO₄): ≤ 200 ppm
Heavy metals (as Pb): ≤ 10 ppm
As (Arsenic): ≤ 5 ppm
Ca (Calcium): ≤ 10 ppm
Co (Cobalt): ≤ 5 ppm
Fe (Iron): ≤ 5 ppm
K (Potassium): ≤ 5 ppm
Mg (Magnesium): ≤ 5 ppm
Na (Sodium): ≤ 100 ppm
Zn (Zinc): ≤ 5 ppm
Ninhydrin-positive substances (LC)(any ninhydrin-positive impurity): ≤ 0.2 %
Ninhydrin-positive substances (LC) (ammonium (570 nm)): ≤ 0.02 %
Ninhydrin-positive substances (LC)(total impurities): ≤ 0.5 %
Loss on drying (105 °C; 3 h): ≤ 0.2 %
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service
