Basic Yellow 1 CAS 2390-54-7
| CAS No. | 2390-54-7 |
| Molecular Formula | C17H19N2S |
| 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 Basic Yellow 1.
Basic Yellow 1 (CAS 2390-54-7), molecular formula C17H19N2SCl and molecular weight 318.86 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C17H19N2SCl, Basic Yellow 1 contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 318.86 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), Basic Yellow 1 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 | C17H19N2S Cl |
| Molecular Weight | 318.86 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Basic Standards
Recommended Standards
- 5-(5-Bromothiophen-2-yl)oxazol-2-amine (CAS 1226102-03-9)
- 5-((Tert-butoxycarbonyl)amino)-2-isopropylthiazole-4-carboxylic acid (CAS 1270034-47-3)
- 5-Oxa-2-azaspiro[3.5]Nonan-8-ol hydrochloride (CAS 2306262-16-6)
- 2-[(methylsulfanyl)methyl]aniline (CAS 34774-84-0)
- 4-(5-Chloro-2-phenyl-2H-1,2,3-triazol-4-yl)benzaldehyde (CAS 61310-01-8)
- 5,5'-(Sulfonylbis(methylene))bis(2-methoxyaniline) (CAS 320338-99-6)
- 1-(2-Hydroxy-1-methyl-1H-pyrrol-3-yl)ethanone (CAS 128547-01-3)
- 5-Chloro-α-oxo-2-thiophenepropanoic acid (CAS 1156724-61-6)
- 4-bromo-1H,1aH,6H,6aH-cyclopropa[a]indene-1-carboxylic acid (CAS 2059941-40-9)
- Semaglutide Impurity 125 xTFA Salt (CAS CATO-C4X-2226125)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com