Clenbuterol-d9 CAS 129138-58-5
| CAS No. | 129138-58-5 |
| Molecular Formula | - |
| Molecular Weight | 286.25 g/mol |
| 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 Clenbuterol-d9.
CATO supplies Clenbuterol-d9 (CAS 129138-58-5), a certified reference material (molecular formula C12H9D9Cl2N2O, MW 286.25 g/mol) for analytical method development and quality control.
The molecular framework of Clenbuterol-d9 (C12H9D9Cl2N2O) is characterized by deuterium isotope labeling, a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C12H9D9Cl2N2O |
| Molecular Weight | 286.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >90% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Clenbuterol Standards
- Clenbuterol EP impurity E (CAS 37148-47-3)
- Clenbuterol Impurity 22 (CAS CATO-C4X-199322)
- Clenbuterol-Hydroxymethyl (CAS 38339-18-3)
- (R)-(-)-Clenbuterol (CAS 50306-03-1)
- (S)-(+)-Clenbuterol (CAS 50499-60-0)
- Clenbuterol Impurity 15 (CAS 38339-14-9)
- (±)-Clenbuterol (CAS 37148-27-9)
- Clenbuterol Impurity 24 (CAS CATO-C4X-199324)
Recommended Standards
- Tert-butyl 2-cyano-2-[5-(trifluoromethyl)pyridin-2-yl]acetate (CAS 941133-76-2)
- Schradan (CAS 152-16-9)
- tert-Butyl 2-(trifluoromethyl)imidazo[1,2-a]pyridine-3-carboxylate (CAS 87378-58-3)
- 4-(1-Ethyl-5-methyl-1h-pyrazol-4-yl)-2-hydrazinyl-6-(trifluoromethyl)pyrimidine (CAS 1006320-20-2)
- N-(4-chlorobenzyl)-6,7-dimethoxyquinazolin-4-amine (CAS 477855-22-4)
- 5-Fluoro-2-(hexyloxy)benzenethiol (CAS 1443305-23-4)
- 2,2-Dimethyl-5,5-diphenyloxazolidin-4-one (CAS 101877-67-2)
- 2-(2-Amino-ethyl)-6-thiophen-2-yl-2H-pyridazin-3-one hydrochloride (CAS 1361114-51-3)
- 2-[2-oxo-2-(pyridin-3-yl)ethylidene]-1,3-thiazolidin-4-one (CAS 1000932-62-6)
- Almonertinib impurity 3 (CAS CATO-C4X-28923)
- (3AR,8bS)-2-(2-(Diphenylphosphanyl)phenyl)-4,4-dimethyl-3a,8b-dihydro-4H-indeno[2,1-d]oxazole (CAS 195192-48-4)
- 6-indoleboric acid (CAS 147621-18-9)
- 4-oxa-7-azaspiro[2.5]octan-6-one (CAS 1253790-21-4)
- Peptide YY (3-36) (human) (CAS 123583-37-9)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com