1.04351
L-Histidine
for biochemistry
Synonym(s):
His, (S)-2-Amino-3-(4-imidazolyl)propionic acid, NSC 137773
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$1,130.00
About This Item
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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
InChI key
HNDVDQJCIGZPNO-YFKPBYRVSA-N
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Related Categories
1 of 4
This Item | 1.04352 | PHR1108 | 73767 |
|---|---|---|---|
| form solid | form solid | form - | form - |
| storage temp. 2-30°C | storage temp. 2-30°C | storage temp. 2-30°C | storage temp. - |
| solubility 38.2 g/L | solubility - | solubility - | solubility - |
| mp 282 °C (dec.) (lit.) | mp 282 °C (dec.) (lit.) | mp 282 °C (dec.) (lit.) | mp 282 °C (dec.) (lit.) |
| Quality Level 100 | Quality Level 500 | Quality Level 300 | Quality Level 300 |
| potency >5110 mg/kg LD50, oral (Rat) | potency - | potency - | potency - |
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
11 - Combustible Solids
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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