Methyl 7-aminothieno[2,3-b]pyrazine-6-carboxylate CAS 244014-85-5
| CAS No. | 244014-85-5 |
| Molecular Formula | C8H7N3O2S |
| Molecular Weight | 209.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Methyl 7-aminothieno[2,3-b]pyrazine-6-carboxylate 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.
Methyl 7-aminothieno[2,3-b]pyrazine-6-carboxylate (CAS 244014-85-5), molecular formula C8H7N3O2S and molecular weight 209.23 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H7N3O2S, Methyl 7-aminothieno[2,3-b]pyrazine-6-carboxylate contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 209.23 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.
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.
Physical & Chemical Properties
| Molecular Formula | C8H7N3O2S |
| Molecular Weight | 209.23 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Methyl 5-aminothieno[2,3-c]pyridazine-6-carboxylate (CAS 135128-08-4)
- Methyl 4-aminothieno[2,3-d]pyrimidine-6-carboxylate (CAS 155087-15-3)
- Methyl 6-aminothieno[2,3-b]pyrazine-7-carboxylate (CAS 243463-05-0)
- Methyl 3-Aminothieno[2,3-b]pyridine-2-carboxylate (CAS 111042-89-8)
- methyl 3-aminothieno[3,2-c]pyridine-2-carboxylate (CAS 111042-92-3)
- 3-Aminothieno[2,3-b]pyridine-2-carbohydrazide (CAS 890095-19-9)
- Methyl 4-aminothieno[3,2-c]pyridine-3-carboxylate (CAS 941666-65-5)
- Methyl 2-aminothieno[2,3-d]thiazole-5-carboxylate (CAS 150242-93-6)
Recommended Standards
- N'-(2-cyanoacetyl)thiophene-2-carbohydrazide (CAS 848369-73-3)
- 7-Methyl-5-thioxo-1,5-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-2-carboxamide (CAS 775543-16-3)
- N'-(4-(Furan-2-yl)thiazol-2-yl)formohydrazide (CAS 31873-81-1)
- 7-Amino-3-methylthieno[2,3-b]pyrazine-6-carboxylic acid (CAS 2123445-28-1)
- {3-methylbicyclo[3.1.0]hexan-3-yl}methanol (CAS 1502312-69-7)
- N-methyl-1-(4-(5-methyl-1,3,4-oxadiazol-2-yl)phenyl)methanamine (CAS 944450-83-3)
- (S)-cyclobutyl(3-fluorophenyl)methanamine (CAS 1075715-61-5)
- Resmetirom Impurity 99 (CAS CATO-C4X-291299)
- Tetraoctadecyl silicate (CAS 18816-28-9)
- Fmoc-D-Asp(OtBu)-OH (CAS 112883-39-3)
- 3-Hydroxy-2,6-dimethyl-4H-pyran-4-one (CAS 2298-99-9)
- 2-(3-Fluoropyridin-2-yl)acetonitrile (CAS 149488-78-8)
- 4-Chloro-N-cyclohexyl-N-phenylbutanamide (CAS 1023536-91-5)
- Semaglutide impurity 57 (CAS 2773558-06-6)
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