Chloramphenicol-d5 CAS 202480-68-0
| CAS No. | 202480-68-0 |
| Molecular Formula | - |
| Molecular Weight | 328.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Chloramphenicol-d5 (CAS 202480-68-0), molecular formula C11H7D5Cl2N2O5 and molecular weight 328.16 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to deuterium isotope labeling, a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Chloramphenicol-d5 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 328.16 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), Chloramphenicol-d5 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 | C11H7D5Cl2N2O5 |
| Molecular Weight | 328.16 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 sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2014 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloramphenicol Standards
- Chloramphenicol-d5 (CAS CATO-CCAD303919)
- Chloramphenicol-13C6 (CAS 1217706-02-9)
- (±)-Chloramphenicol (CAS 2787-09-9)
- Chloramphenicol Impurity 18 (CAS 40027-72-3)
- Chloramphenicol (CAS 56-75-7)
- m-Chloramphenicol (CAS 7411-65-6)
- Chloramphenicol 3-Acetate (CAS 10318-16-8)
- Chloramphenicol 1-Acetate (CAS 23214-93-9)
Recommended Standards
- Arbidol Impurity 40 (CAS 1106670-97-6)
- DL-threo-Chloramphenicol-d5 (CAS 1420043-66-8)
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- Methyl 5-acetamido-6-bromochromane-8-carboxylate (CAS 941692-26-8)
- 2-(2,5-Dichlorophenoxy)acetimidamide (CAS 1001567-19-6)
- 2-(4-Hexyloxybenzoyl)-6-methoxypyridine (CAS 1187166-42-2)
- 1-(2-Bromoethyl)indolin-2-one (CAS 90844-77-2)
- 1-Chloro-8-naphthol (CAS 65253-31-8)
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- Boc-Arg(Pbf)-OH (CAS 200124-22-7)
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- Cholecystokinin Octapeptide (1-3) (desulfated) H-Asp-Tyr-Met-OH (CAS 121880-94-2)
Why CATO?
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