L-Histidine hydrochloride
- CAS NO.：645-35-2
- Empirical Formula: C6H10ClN3O2
- Molecular Weight: 191.62
- MDL number: MFCD00064556
- EINECS: 211-438-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 03:12:03
What is L-Histidine hydrochloride?
Description
L-Histidine hydrochloride can undergo racemization due to heating in water, leading to the formation of DL-histidine. It can be used as a supplement in conditions of riboflavin vitamin deficiency.
Chemical properties
White needles, plates, or crystalline powder; slightly bitter taste. Decomp 250C. Sol in water; insol in alc, ether.
The Uses of L-Histidine hydrochloride
Amino acid.
Flammability and Explosibility
Not classified
Properties of L-Histidine hydrochloride
| Melting point: | 243-244 °C(Solv: ethanol (64-17-5)) |
| Density | 1.472[at 20℃] |
| vapor pressure | 0Pa at 20℃ |
| storage temp. | Inert atmosphere,2-8°C |
| form | Crystalline |
| Water Solubility | 149.55g/L at 20℃ |
| BRN | 4168261 |
| InChI | InChI=1/C6H9N3O2.ClH/c7-5(6(10)11)1-4-2-8-3-9-4;/h2-3,5H,1,7H2,(H,8,9)(H,10,11);1H/t5-;/s3 |
| CAS DataBase Reference | 645-35-2(CAS DataBase Reference) |
| EPA Substance Registry System | L-Histidine, monohydrochloride (645-35-2) |
Safety information for L-Histidine hydrochloride
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for L-Histidine hydrochloride
| InChIKey | QZNNVYOVQUKYSC-USHJBNIQNA-N |
| SMILES | C(O)(=O)[C@H](CC1N=CNC=1)N.[H]Cl |&1:3,r| |
L-Histidine hydrochloride manufacturer
Thirthraj Consolidated Company
Karnataka
product: L- Histidine HCL Powder, For Used In Nutraceutical, Grade: Pure
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