Thymidine Impurity 1 CAS CATO-C4X-32971
| CAS No. | CATO-C4X-32971 |
| Molecular Formula | C44H51N4O8P |
| Molecular Weight | 794.87 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Thymidine Impurity 1 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Thymidine Impurity 1 (CAS CATO-C4X-32971) is a certified pharmaceutical impurity reference standard with the molecular formula C44H51N4O8P and a molecular weight of 794.87 g/mol.
Thymidine Impurity 1 (C44H51N4O8P) contains a nitrogen-containing heterocyclic scaffold, an amide group, a phosphate ester group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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 quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C44H51N4O8P |
| Molecular Weight | 794.87 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 21.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Thymidine Standards
- Thymidine Impurity 2 (CAS CATO-C4X-32972)
- Thymidine-5-diphosphate-D-glucose disodium salt (CAS 148296-43-9)
- Thymidine 5-Triphosphate, 3-Phosphate (CAS 1015762-49-8)
- Thymidine-5-diphosphate-L-rhamnose disodium salt (CAS 2147-59-3)
- Thymidine, 5'-O-[[4-(1H,1H,2H,2H-perfluorodecyl)phenyl]bis(4-methoxyphenyl)methyl]-, 3'-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite] (CAS 902456-09-1)
- Thymidine-<SUP>13</SUP>C<SUB>10</SUB>, <SUP>15</SUP>N<SUB>2</SUB> 5′-monophosphate sodium salt (CAS 1485539-28-3)
- Thymidine-1,2,3,4,5- (CAS 156968-81-9)
- Thymidine-α,α,α,6-d4 (CAS 347841-67-2)
Recommended Standards
- (2R,3S,5R)-5-(4-Benzamido-2-oxopyrimidin-1(2H)-yl)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)tetrahydrofuran-3-yl methyl diiSopropylphosphoramidite (CAS 84416-83-1)
- Acetyl Perisesaccharide C (CAS 110764-09-5)
- 4,7-Bis(5-bromo-4-dodecyl-2-thienyl)-2,1,3-benzothiadiazole (CAS 1179993-72-6)
- (-)-Conophylline (CAS 142741-24-0)
- Entacapone Impurity 12 (CAS CATO-C4X-162912)
- Nafcillin Impurity 3 (Mixture of Diastereomers) (CAS CATO-C4X-33383)
- Dolutegravir Impurity 25 (CAS 2730133-58-9)
- 1-L-Cys-Etelcalcetide (CAS CATO-C4X-32471)
- 4-Chloro-5-nitrobenzo[d]thiazole (CAS 2411087-55-1)
- N-[2-(Phenethyloxy)benzyl]-3-(3-phenylpropoxy)aniline (CAS 1040691-00-6)
- 5-Amino-6-hydroxy-2-(trifluoromethyl)pyrimidin-4(3H)-one (CAS 1513-71-9)
- 4-Cyclopropoxy-5-nitropyridine-2-sulfonamide (CAS 1243350-10-8)
- n-Methyl-[1,1'-biphenyl]-4-amine (CAS 3365-81-9)
- Semaglutide Impurity 192 (CAS CATO-C4X-2226192)
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