2-(Thieno[2,3-d]pyrimidin-4-ylamino)ethanol CAS 18734-91-3
| CAS No. | 18734-91-3 |
| Molecular Formula | C8H9N3OS |
| Molecular Weight | 195.24 g/mol |
| 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 2-(Thieno[2,3-d]pyrimidin-4-ylamino)ethanol.
2-(Thieno[2,3-d]pyrimidin-4-ylamino)ethanol (CAS 18734-91-3), molecular formula C8H9N3OS and molecular weight 195.24 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H9N3OS, 2-(Thieno[2,3-d]pyrimidin-4-ylamino)ethanol contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 195.24 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.
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 | C8H9N3OS |
| Molecular Weight | 195.24 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.) | 1962 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Thieno Standards
- 2-(Thieno[3,2-d]pyrimidin-4-ylamino)ethan-1-ol (CAS 16234-53-0)
- THieno[3,2-d]pyrimidine, 2,4-dimethoxy- (CAS 16229-02-0)
- Thieno[2,3-b]thiophene-2,5-dicarbaldehyde (CAS 41784-82-1)
- Methyl thieno[3,2-d]pyrimidine-7-carboxylate (CAS 1356017-03-2)
- Methyl thieno[2,3-d]pyrimidine-4-carboxylate (CAS 175293-84-2)
- Methyl thieno[2,3-b]pyrazine-6-carboxylate (CAS 1824388-08-0)
- Thieno[3,2-c]pyridine-6-carbohydrazide (CAS 1239735-00-2)
- Thieno[2,3-b]pyridine-2-carbohydrazide (CAS 2169387-81-7)
Recommended Standards
- 3-((2,3-Dihydroxypropyl)amino)thietane 1,1-dioxide (CAS 1856280-91-5)
- 5-(Hydroxymethyl)-2H-benzo[b][1,4]thiazin-3(4H)-one (CAS 1896005-82-5)
- 3-Methyl-4-(methylsulfonyl)benzonitrile (CAS 1820608-05-6)
- 8-(Hydroxymethyl)-2H-benzo[b][1,4]thiazin-3(4H)-one (CAS 1897850-38-2)
- 3,4,5-Trichloro-1,6-dihydro-6-oxo-2-Pyridinecarboxylic Acid 3,4,5-Trichloro-6-hydroxy-2-picolinic Acid 3,4,5-Trichloro-6-hydroxy-2-pyridinecarboxylic Acid 73455-14-8 (CAS 73455-14-8)
- 1-(2-Fluoro-4-methoxyphenyl)ethanol (CAS 74457-87-7)
- Methyl 3,3'-difluoro-5'-methoxy-[1,1'-biphenyl]-4-carboxylate (CAS 1365272-01-0)
- (9E)-Strobilurin A (CAS 81436-40-0)
- acenaphthylene-1,2-dione dioxime (CAS 1932-08-7)
- 3-Isopropyl-1,5-dimethyl-3,7-diaza-bicyclo[3.3.1]-nonan-9-ol (CAS 956938-47-9)
- Zolpidem Tartrate EP Impurity E (CAS CATO-C4X-148615)
- 4-Chloro-N,N-dimethylbutanamide (CAS 22813-58-7)
- 3,4-Difluoro-4-(thiomethyl)benzophenone (CAS 197439-06-8)
- Semaglutide-d8 Tetratrifluoroacetate (CAS CATO-C4X-222617)
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