4H-thieno[3,2-b]pyrrol-5-ylmethanol CAS 878657-01-3
| CAS No. | 878657-01-3 |
| Molecular Formula | C7H7NOS |
| Molecular Weight | 153.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4H-thieno[3,2-b]pyrrol-5-ylmethanol (CAS 878657-01-3), molecular formula C7H7NOS and molecular weight 153.20 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4H-thieno[3,2-b]pyrrol-5-ylmethanol (C7H7NOS) is characterized by an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system. 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 4H-thieno[3,2-b]pyrrol-5-ylmethanol 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 | C7H7NOS |
| Molecular Weight | 153.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related H Standards
- (6H-Thieno[2,3-b]pyrrol-5-yl)methanol (CAS 126633-05-4)
- Thieno[3,2-b]furan-5-ylmethanamine (CAS 1334146-47-2)
- Thieno[2,3-d][1,2,3]triazin-4(1H)-one (CAS 38371-44-7)
- Thieno[3,2-c]isoxazole-3-carbaldehyde (CAS 339363-57-4)
- Thieno[2,3-c]furan-4,6-dione (CAS 6007-83-6)
- (4H-Thieno[3,2-b]pyrrol-2-yl)methanamine (CAS 1539122-53-6)
- (1H-Thieno[3,2-c]pyrazol-5-yl)methanol (CAS 848358-06-5)
- 1H-Thieno[3,2-c]pyrazole-5-carbaldehyde (CAS 1529810-07-8)
Recommended Standards
- 4-Fluoro-N-propylaniline (CAS 2806-12-4)
- 4-Mercaptobenzamide (CAS 59177-46-7)
- 4-Fluoro-N-isopropylaniline (CAS 70441-63-3)
- 5-(1-Hydroxyethyl)thiophene-2-carbonitrile (CAS 353282-69-6)
- Ethyl 4-bromo-2-(methylthio)benzoate (CAS 918328-04-8)
- Methyl 1-(4-chlorophenyl)-5-(2-methoxy-2-oxoethyl)-1H-1,2,3-triazole-4-carboxylate (CAS 114462-77-0)
- (S)-1-(2-chloro-6-fluorophenyl)-2-methoxyethan-1-amine (CAS 1270028-55-1)
- methyl 4-(pyridin-4-yl)benzoate (CAS 106047-17-0)
- 2-(pyrrolidin-3-yloxy)-1,3-benzoxazole hydrochloride (CAS 1420898-29-8)
- Triallyl Citrate (CAS 6299-73-6)
- Urapidil Impurity 70 (CAS 112735-05-4)
- Cobalt(II)carbonate (CAS 513-79-1)
- 2-(azepan-1-yl)cyclohexan-1-one (CAS 1157735-52-8)
- Semaglutide impurity 30 (CAS CATO-C4X-222630)
Why CATO?
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