5,6-Dihydrobenzo[h]cinnolin-3-ol CAS 55267-52-2
| CAS No. | 55267-52-2 |
| Molecular Formula | C14H20N6O5S |
| Molecular Weight | 384.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 5,6-Dihydrobenzo[h]cinnolin-3-ol (C14H20N6O5S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 384.41 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies 5,6-Dihydrobenzo[h]cinnolin-3-ol (CAS 55267-52-2), a certified reference material (molecular formula C14H20N6O5S, MW 384.41 g/mol) for analytical method development and quality control.
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), 5,6-Dihydrobenzo[h]cinnolin-3-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 | C14H20N6O5S |
| Molecular Weight | 384.41 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 1 |
Related Dihydrobenzo Standards
- N-(5,6-Dihydrobenzo[h]quinazolin-2-yl)-N-[3-(trifluoromethyl)phenyl]urea (CAS 338774-92-8)
- 7-Phenyl-7,9-dihydrobenzo[g]indolo[2,3-b]carbazole (CAS 1800022-02-9)
- N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-(5-methyl-3-(morpholine-4-carbonyl)-1H-pyrazol-1-yl)acetamide (CAS 1172868-15-3)
- N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-((4-ethyl-5-(furan-2-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 573696-56-7)
- 2-((2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)amino)-2-oxoethyl 5-bromofuran-2-carboxylate (CAS 485758-84-7)
- 3-(((2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)methyl)thio)-5-phenylthiazolo[2,3-c][1,2,4]triazole (CAS 690961-65-0)
- N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-1-(4-nitrobenzyl)-1H-imidazole-4-carboxamide (CAS 1351771-27-1)
- 4-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-3-((5-nitro-thiazol-2-yl)thio)-1H-1,2,4-triazol-5(4H)-one (CAS 883065-90-5)
Recommended Standards
- 3-[3-(4-Methoxyanilino)acryloyl]-5-methyl-N-(1,3-thiazol-2-yl)-4-isoxazolecarboxamide (CAS 338794-76-6)
- Methyl 3-(3-methyl-1-(phenylcarbamoyl)-1H-pyrazole-4-carboxamido)thiophene-2-carboxylate (CAS 321574-09-8)
- 3-((4-Methoxybenzyl)oxy)-N-(4-nitrophenyl)thiophene-2-carboxamide (CAS 339098-27-0)
- Morpholino(4-((3-nitrophenyl)sulfonyl)piperazin-1-yl)methanone (CAS 694467-66-8)
- 4-(((4-(4-Bromophenyl)-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)methyl)benzonitrile (CAS 477333-08-7)
- Methyl 3-iodopyrazolo[1,5-a]pyridine-6-carboxylate (CAS 2566623-93-4)
- 2,3,4,9-Tetrahydro-1H-carbazol-7-ol (CAS 13314-79-9)
- 8-Bromo-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one (CAS 1640125-13-8)
- 1-(1-Ethylpyrrolidin-2-yl)-N-(thiophen-3-ylmethyl)methanamine (CAS 1021097-39-1)
- 6-Butoxyquinolin-3-amine (CAS 1365942-67-1)
- Azulen-2-ylboronic acid (CAS 1069984-13-9)
- 7-Bromo-3-methyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 1190927-76-4)
- Methyl 3-(phenylamino)pyridazine-4-carboxylate (CAS 119581-34-9)
- Semaglutide Impurity 190 (CAS CATO-C4X-2226190)
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