1.04350
L-Histidine monohydrochloride monohydrate
for biochemistry
Synonym(s):
His, L-α-Amino-β-(4-imidazolyl)propionic acid monohydrochloride
About This Item
Recommended Products
vapor pressure
<1 hPa ( 20 °C)
Quality Level
form
crystalline powder
pH
3.5-4.5 (20 °C, 100 g/L in H2O)
mp
254 °C (dec.) (lit.)
solubility
149.55 g/L
density
1.49 g/cm3 at 20 °C
bulk density
770 kg/m3
storage temp.
2-30°C
SMILES string
O.Cl.N[C@@H](Cc1c[nH]cn1)C(O)=O
InChI
1S/C6H9N3O2.ClH.H2O/c7-5(6(10)11)1-4-2-8-3-9-4;;/h2-3,5H,1,7H2,(H,8,9)(H,10,11);1H;1H2/t5-;;/m0../s1
InChI key
CMXXUDSWGMGYLZ-XRIGFGBMSA-N
Looking for similar products? Visit Product Comparison Guide
Analysis Note
Identity (IR-spectrum): passes test
Appearance: white to almost white crystalline powder or colorless crystals
Appearance of solution (50 g/l CO₂-free water): clear and colorless
Spec. rotation (α 20/D, 110 g/l, hydrochloric acid 120 g/l, calc. on dried substance): +9.2 to +10.6
Sulfate (SO₄): ≤ 0.02 %
Heavy metals (as Pb): ≤ 0.001 %
As (Arsenic): ≤ 0.0005 %
Ca (Calcium): ≤ 0.001 %
Co (Cobalt): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.0005 %
Mg (Magnesium): ≤ 0.0005 %
Na (Sodium): ≤ 0.005 %
NH₄ (Ammonium): ≤ 0.01 %
Zn (Zinc): ≤ 0.0005 %
Foreign amino acids: ≤ 0.3 %
Other ninhydrine positive substances: ≤ 0.1 %
Loss on drying (150 °C): 7.0 - 10.0 %
Storage Class
11 - Combustible Solids
wgk_germany
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.
Customers Also Viewed
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