2-(1-Oxo-1,2-dihydrophthalazin-2-yl)ethanethioamide CAS 1016860-91-5
| CAS No. | 1016860-91-5 |
| Molecular Formula | C10H9N3OS |
| Molecular Weight | 219.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-(1-Oxo-1,2-dihydrophthalazin-2-yl)ethanethioamide is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-(1-Oxo-1,2-dihydrophthalazin-2-yl)ethanethioamide (CAS 1016860-91-5), molecular formula C10H9N3OS and molecular weight 219.26 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-(1-Oxo-1,2-dihydrophthalazin-2-yl)ethanethioamide (C10H9N3OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, 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 219.26 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), 2-(1-Oxo-1,2-dihydrophthalazin-2-yl)ethanethioamide 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 | C10H9N3OS |
| Molecular Weight | 219.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Oxo Standards
- 2-(4-oxo-3,4-dihydrophthalazin-1-yl)acetic acid (CAS 25947-11-9)
- (4-Oxo-3,4-dihydrophthalazin-1-yl)methyl methylcarbamate (CAS 37976-07-1)
- 2-(4-oxo-3,4-dihydrophthalazin-1-yl)acetonitrile (CAS 91587-99-4)
- 4-(4-Oxo-3,4-dihydrophthalazin-1-yl)benzoic acid (CAS 152567-94-7)
- 2-(((4-Oxo-3,4-dihydrophthalazin-1-yl)methyl)amino)benzonitrile (CAS 303995-59-7)
- 4-Methyl-3,4-dihydrophthalazin-1(2H)-one (CAS 6091-73-2)
- 6-(4-Oxo-3,4-dihydrophthalazin-1-yl)-3,4-dihydro-2H-1,4-benzoxazin-3-one (CAS 330151-13-8)
- 6-(4-Oxo-3,4-dihydrophthalazin-1-yl)-4-propyl-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 685109-15-3)
Recommended Standards
- (4-Cyanotetrahydro-2H-pyran-4-yl)methyl methanesulfonate (CAS 1010836-59-5)
- 5-m-Tolyl-thiazole-4-carboxylic acid (CAS 1017273-23-2)
- n-((3-(4-Fluorophenyl)-1h-pyrazol-4-yl)methyl)ethanamine (CAS 1007521-70-1)
- 3-(4-Fluorophenyl)-1-isopropyl-1H-pyrazol-5-amine (CAS 1017781-32-6)
- 3-(4-Chloro-phenylmethanesulfonyl)-propionic acid (CAS 392330-71-1)
- 5-(Azepan-1-yl)-2-(ethylsulfonyl)aniline (CAS 1220033-67-9)
- 2-Bromo-5-cyclopropylpyrimidine (CAS 1353855-47-6)
- 2-(4-(4-(Methylthio)benzo[d]thiazol-2-yl)piperazin-1-yl)phenol (CAS 1219907-20-6)
- 4-bromo-2-methyl-5-nitrobenzonitrile (CAS 1807210-13-4)
- Diethyl 2-aminoazulene-1,3-dicarboxylate (CAS 3806-02-8)
- 2-(4-(3,4-Difluorophenyl)thiazol-2-yl)acetonitrile (CAS 883024-06-4)
- 2-Amino-N-(2-chloro-6-methylphenyl)thiazole-5-carboxamide (CAS 302964-24-5)
- Ceftazidime Impurity 108 (CAS CATO-C4X-1212108)
- Gastric Inhibitory Polypeptide (6-30) amide (human) (CAS 1139691-72-7)
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