3-Chloro-1H-pyrrolo[3,2-b]pyridin-5-ol CAS 1190311-73-9
| CAS No. | 1190311-73-9 |
| Molecular Formula | C7H5ClN2O |
| Molecular Weight | 168.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Chloro-1H-pyrrolo[3,2-b]pyridin-5-ol (CAS 1190311-73-9), a certified reference material (molecular formula C7H5ClN2O, MW 168.58 g/mol) for analytical method development and quality control.
Owing to an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 3-Chloro-1H-pyrrolo[3,2-b]pyridin-5-ol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 168.58 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), 3-Chloro-1H-pyrrolo[3,2-b]pyridin-5-ol 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 | C7H5ClN2O |
| Molecular Weight | 168.58 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 6-Chloro-1H-pyrrolo[3,2-c]pyridin-2(3H)-one (CAS 1000342-80-2)
- 4-Chloro-2-methoxypyridine-3-carbonitrile (CAS 1008451-56-6)
- 6-Chloro-2-methyl-9H-purine (CAS 100859-35-6)
- 3-chloro-6-methyl-[1,2,4]triazolo[4,3-a]pyrimidine (CAS 1019033-24-9)
- 2-Chloro-8-methyl-9H-purine (CAS 1023813-16-2)
- 2-Chloro-5-methylfuro[2,3-d]pyrimidine (CAS 1030377-49-1)
- 7-chloro-5-methyl-1H-pyrazolo[4,3-d]pyrimidine (CAS 1055057-37-8)
- 2-Chloro-6-hydrazinylpyridine-4-carbonitrile (CAS 107445-56-7)
Recommended Standards
- 7-chloropyrazolo[1,5-a]pyrimidin-5-amine (CAS 1189852-04-7)
- 3-Chloro-1H-pyrrolo[2,3-c]pyridin-7-ol (CAS 1190314-08-9)
- 4-Chloro-1H-pyrazolo[3,4-c]pyridin-3-amine (CAS 1189727-33-0)
- 3-Chloro-1H-pyrrolo[3,2-b]pyridin-6-ol (CAS 1190316-89-2)
- Methyl 5-(2-methoxybenzoyl)furan-2-carboxylate (CAS 1399662-48-6)
- 2-Bromo-4-iodo-5-nitropyridine (CAS 1805506-86-8)
- 5-(tert-Butoxy)-3-cyclopropoxy-2-nitropyridine (CAS 1243346-56-6)
- N-(4-Acetyl-2-amino-5-hydroxyphenyl)acetamide (CAS 6607-95-0)
- Isoquinoline-3,5-diamine (CAS 852241-18-0)
- 2-Isopropyl-3,5,6-trimethylpyrazine (CAS 104638-10-0)
- Haloperidol impurity 24 (CAS 3110-52-9)
- methyl 2-[2-(3-hydroxyprop-1-ynyl)phenyl]-2-methyl-propanoate (CAS 2517575-45-8)
- 6-Chloro-4-methoxypyridin-3-amine (CAS 1256805-54-5)
- Semaglutide Impurity 186 (CAS CATO-C4X-2226186)
Why CATO?
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