Thiazolyl blue CAS 298-93-1
| CAS No. | 298-93-1 |
| Molecular Formula | C18H16N5S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Thiazolyl blue.
Thiazolyl blue (CAS 298-93-1) is a high-purity analytical reference standard with the molecular formula C18H16N5SBr and a molecular weight of 414.32 g/mol.
The molecular framework of Thiazolyl blue (C18H16N5SBr) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Thiazolyl blue 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 | C18H16N5S Br |
| Molecular Weight | 414.32 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, protect from light |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Thiazolyl Standards
- 1-(5-Thiazolyl)ethanamine (CAS 1017480-28-2)
- 1-(2-Methyl-4-thiazolyl)methylamine Dihydrochloride (CAS 1072806-63-3)
- 3-(4-Thiazolyl)-benzaldehyde (CAS 1083300-27-9)
- 1-(5-METHYL-2-THIAZOLYL)-PIPERAZINE (CAS 118113-05-6)
- 3-(5-Thiazolyl)aniline (CAS 1181615-28-0)
- 2-Methyl-5-thiazolyl-boronic Acid (CAS 1190875-47-8)
- Boc-3-(4-thiazolyl)-L-alanine (CAS 119434-75-2)
- Ethyl 2-(4-Thiazolyl)acetate (CAS 120155-43-3)
Recommended Standards
- 1-Benzyl-4-chloro-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid (CAS 1363404-69-6)
- N-methyl-3-methylene-1-phenylpent-4-en-1-amine hydrochloride (CAS 299435-49-7)
- 1-Ethyl-2-(3-methoxyphenyl)-5-methyl-1H-pyrrole (CAS 62041-52-5)
- 6-(3-Oxocyclohexyl)hexanenitrile (CAS 898784-97-9)
- 6-Chloro-N-(tetrahydro-2H-pyran-4-ylmethyl)-2-pyridinamine (CAS 1219967-41-5)
- 2-(3,3-Difluoropiperidin-1-yl)-5-nitropyridine (CAS 1707605-19-3)
- (11bR)-8,9,10,11,12,13,14,15-Octahydro-4-hydroxy-2,6-bis(2,4,6-tricyclohexylphenyl)-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin 4-oxide (CAS 1676072-26-6)
- Dimethyl oxirane-2,3-dicarboxylate (CAS 56958-97-5)
- (3-(Cyclopentyloxy)isoxazol-5-yl)methanol (CAS 1707378-66-2)
- Insulin Degludec Impurity 18 (CAS CATO-C4X-215718)
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