2-Chloro-7H-purine-8(9H)-thione CAS 89364-07-8
| CAS No. | 89364-07-8 |
| Molecular Formula | C5H3ClN4S |
| Molecular Weight | 186.62 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.
2-Chloro-7H-purine-8(9H)-thione (CAS 89364-07-8) is a high-purity analytical reference standard with the molecular formula C5H3ClN4S and a molecular weight of 186.62 g/mol.
2-Chloro-7H-purine-8(9H)-thione (C5H3ClN4S) contains a nitrile group, sulfur-containing functionality, chlorine substitution. Halogen substitution raises its density and boiling point; 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.
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 | C5H3ClN4S |
| Molecular Weight | 186.62 g/mol |
| Purity | 97%+ |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
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- N'-(4,6-dimethyl-3-(1H-pyrrol-1-yl)thieno[2,3-b]pyridine-2-carbonyl)-4-fluorobenzenesulfonohydrazide (CAS 478029-13-9)
- 4-[3-(1-Methyl-1H-pyrrol-2-yl)-1,2,4-oxadiazol-5-yl]piperidine hydrochloride (CAS 1638612-76-6)
- 2-Picolinic-d4 Acid (CAS 284487-61-2)
- tert-Butyl (3-(benzyloxy)-4-oxo-4H-pyrido[1,2-a]pyrimidin-8-yl)carbamate (CAS 2304495-86-9)
- Des-[Gly]31-Semaglutide(x TFA Salt) (CAS 873874-39-6(free base))
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