(2R,3S,5R)-5-(6-Amino-8-((2-chloro-4-(hydroxymethyl)phenyl)amino)-9H-purin-9-yl)-2-(hydroxymethyl)tetrahydrofuran-3-ol CAS 119631-05-9
| CAS No. | 119631-05-9 |
| Molecular Formula | C20H18N6O7S2 |
| Molecular Weight | 518.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(2R,3S,5R)-5-(6-Amino-8-((2-chloro-4-(hydroxymethyl)phenyl)amino)-9H-purin-9-yl)-2-(hydroxymethyl)tetrahydrofuran-3-ol (CAS 119631-05-9), molecular formula C20H18N6O7S2 and molecular weight 518.52 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, (2R,3S,5R)-5-(6-Amino-8-((2-chloro-4-(hydroxymethyl)phenyl)amino)-9H-purin-9-yl)-2-(hydroxymethyl)tetrahydrofuran-3-ol is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 518.52 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C20H18N6O7S2 |
| Molecular Weight | 518.52 g/mol |
| Purity | 97%+ |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Recommended Standards
- 4,4'-Azoxybis[N-(5-methyl-3-isoxazolyl)-benzenesulfonamide (CAS 119403-03-1)
- Methyl 1,4-Dihydro-2,6-dimethyl-4-(2-trifluoromethyl)phenyl-pyridine-3-carboxylate-5-(3,4-dimethoxyphenyl)ethyl Carboxamide (CAS 887406-97-5)
- Phellamurin (CAS 52589-11-4)
- Pomalidomide-PEG4-azide (CAS 2271036-47-4)
- 6-((3,5-Dichlorophenyl)thio)-5-ethyl-1-((2-hydroxyethoxy)methyl)-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 137897-90-6)
- 127972-27-4 4-Ethoxy-4'-hydroxybiphenyl DTXSID60476222 (CAS 127972-27-4)
- 4-Piperidinemethanethiol (CAS 942984-68-1)
- tert-Butyl (1R,5S,6s)-6-(2-hydroxyethyl)-3-azabicyclo[3.1.0]hexane-3-carboxylate (CAS 1648868-97-6)
- Bicyclo[2.2.2]octane-1-carboxylic acid (CAS 699-55-8)
- Tert-butyl (S)-((4-methylmorpholin-2-yl)methyl)carbamate (CAS 2382404-19-3)
- (S)-1-(2-(Methylamino)benzoyl)pyrrolidine-2-carboxylic acid (CAS 58177-15-4)
- [2-(benzyloxy)ethyl]hydrazine hydrochloride (CAS 81866-70-8)
- 2-(Isopropylamino)oxazole-4-carbonitrile (CAS 122686-29-7)
- Tirzepatide Impurity 57 (CAS CATO-C4X-324057)
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