L-Histidine-UL- CAS 7048-02-4
| CAS No. | 7048-02-4 |
| Molecular Formula | C6H9N3O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including L-Histidine-UL-.
CATO supplies L-Histidine-UL- (CAS 7048-02-4), a certified reference material (molecular formula C6H9N3O2HClH2O, MW 209.63 g/mol) for analytical method development and quality control.
L-Histidine-UL- (C6H9N3O2HClH2O) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), L-Histidine-UL- meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6H9N3O2 HCl H2O |
| Molecular Weight | 209.63 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related L Standards
- HISTIDINE Impurity 2 (CAS 1141479-01-7)
- DL-Histidine-α- (CAS 15474-90-5)
- D-Histidine Methyl Ester (CAS 17720-12-6)
- L-Histidine Methyl Ester Hydrochloride (CAS 18684-16-7)
- HISTIDINE Impurity 6 (CAS 1932060-69-9)
- L-Histidine-13C6,15N3 hydrochloride hydrate (CAS 202468-43-7)
- D-Histidine, 1-[(1,1-dimethylethoxy)carbonyl]-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-, compd. with cyclohexanamine (1:1) (CAS 210755-31-0)
- L-Histidine, 1-methyl-, methyl ester, hydrochloride (1:1) (CAS 256657-21-3)
Recommended Standards
- tert-Butyl 4-chloro-1H-pyrazole-1-carboxylate (CAS 1821332-22-2)
- 5-(Hydroxymethyl)-1,3-dihydro-2H-pyrrolo[2,3-b]pyridin-2-one (CAS 1638763-99-1)
- (S)-2-Methyl-1-(pyridin-2-yl)propan-1-amine dihydrochloride (CAS 2222165-17-3)
- 2-(4-(4-Ethoxyphenyl)-2-morpholinothiazol-5-yl)acetic acid (CAS 1443290-05-8)
- 4-amino-1-methylpiperidin-2-one dihydrochloride (CAS 1797374-82-3)
- Methyl 3-fluoro-5-(4-nitrophenyl)benzoate (CAS 1352318-67-2)
- 4-Methylpentanal (CAS 1119-16-0)
- 1-(2-Chloro-4-fluorophenyl)propan-2-ol (CAS 1250650-92-0)
- 4-Ethyl-4,5,6,7-tetrahydro-1,3-benzothiazol-2-amine (CAS 1131905-51-5)
- Prolactin-Releasing Peptide (1-31) (rat) (CAS 215510-06-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com