Amino Acid L-Histidine High Quality Product

• Type: Histidine
• Chemical Character: Acidity
• Appearance: Crystal
• Transport Package: 25kg/Drum
• Specification: 99%
• Trademark: Richnow
• Model NO.: 71-00-1
• Origin: China
• HS Code: 2933290090
• Production Capacity: 10000kg Per Year

Product Description

L-Histidine Chemical Properties

Melting point	282 °C (dec.)(lit.)
alpha	12.4 º (c=11,6N HCl)
Boiling point	278.95°C (rough estimate)
density	1.3092 (rough estimate)
refractive index	13 ° (C=11, 6mol/L HCl)
FEMA	3694 | L-HISTIDINE
storage temp.	2-8°C
solubility	H2O: 50 mg/mL
form	powder
pka	1.8(at 25ºC)
color	White to off-white or pale yellow
PH Range	7 - 8 at 15.5 g/l at 25 °C
PH	7.0-8.0 (25ºC, 0.1M in H2O)
optical activity	[α]20/D 39±1°, c = 2% in H2O
Water Solubility	41.6 g/L (25 ºC)
λmax	λ: 260 nm Amax: 0.05 λ: 280 nm Amax: 0.05
Merck	14,4720
JECFA Number	1431
BRN	4673585
Stability:	Stable. Incompatible with strong oxidizing agents.
InChIKey	HNDVDQJCIGZPNO-YFKPBYRVSA-N
CAS DataBase Reference	71-00-1(CAS DataBase Reference)
NIST Chemistry Reference	L-Histidine(71-00-1)
EPA Substance Registry System	L-Histidine (71-00-1)