Thieno[2,3-b]pyrazin-7-amine CAS 59944-75-1
| CAS No. | 59944-75-1 |
| Molecular Formula | C6H5N3S |
| Molecular Weight | 151.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C6H5N3S, Thieno[2,3-b]pyrazin-7-amine contains a nitrile group, sulfur-containing functionality, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 151.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Thieno[2,3-b]pyrazin-7-amine (CAS 59944-75-1) is a high-purity analytical reference standard with the molecular formula C6H5N3S and a molecular weight of 151.19 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H5N3S |
| Molecular Weight | 151.19 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Thieno Standards
- Thieno[3,2-d]pyrimidin-2-amine (CAS 1027729-09-4)
- Thieno[3,2-b]pyridin-7-ol (CAS 107818-20-2)
- Thieno[3,2-b]pyridin-6-ol (CAS 115063-93-9)
- Thieno[3,2-b]pyridin-3-ol (CAS 118801-95-9)
- Thieno[2,3-b]pyridin-3-ol (CAS 152939-31-6)
- Thieno[2,3-b]pyrazin-3-amine (CAS 1940206-33-6)
- Thieno[2,3-b]pyridin-4-ol (CAS 65075-96-9)
- Thieno[2,3-b]pyridin-6(7H)-one (CAS 62226-16-8)
Recommended Standards
- Thiazolo[5,4-b]pyridin-6-amine (CAS 948306-28-3)
- Thiazolo[4,5-c]pyridin-2-amine (CAS 89786-54-9)
- Thiazolo[3,2-a]pyridin-4-ium-3-olate (CAS 42715-25-3)
- Thieno[2,3-c]pyridin-3-ol (CAS 2060033-83-0)
- Phenyl-2-pyridyl ketoxime (CAS 1826-28-4)
- 5-(1,3-Dioxolan-2-yl)-2-thienyl octyl ketone (CAS 898771-94-3)
- 2-(1-(Tertbutoxycarbonyl)-3-fluoropiperidin-4-yl)acetic acid (CAS 1373502-96-5)
- 2-Bromo-4,6-difluoropyridine (CAS 41404-63-1)
- 5-Amino-1-(4-butylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one (CAS 1416342-19-2)
- 2-Hydroxy Irinotecan (CAS 1346597-39-4)
- 1-[(2-bromoethoxy)methyl]-4-methoxybenzene (CAS 149966-28-9)
- 4-(Azetidin-3-yl)pyrimidine 2HCl (CAS 1384264-47-4)
- Tert-butyl (R)-5-amino-8-bromo-1,3,4,5-tetrahydro-2H-benzo[c]azepine-2-carboxylate (CAS 2247616-17-5)
- Palmitoyl Tetrapeptide-7 (CAS 221227-05-0)
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