3-Thiophenecarboxylic acid, 5-(1-methylethyl)-, hydrazide (9CI) 438221-49-9 CAS 438221-49-9
| CAS No. | 438221-49-9 |
| Molecular Formula | C8H12N2OS |
| Molecular Weight | 184.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Thiophenecarboxylic acid, 5-(1-methylethyl)-, hydrazide (9CI) 438221-49-9 (CAS 438221-49-9) is a high-purity analytical reference standard with the molecular formula C8H12N2OS and a molecular weight of 184.26 g/mol.
The molecular framework of 3-Thiophenecarboxylic acid, 5-(1-methylethyl)-, hydrazide (9CI) 438221-49-9 (C8H12N2OS) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. 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).
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), 3-Thiophenecarboxylic acid, 5-(1-methylethyl)-, hydrazide (9CI) 438221-49-9 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 | C8H12N2OS |
| Molecular Weight | 184.26 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Thiophenecarboxylic Standards
- 3-Thiophenecarboxylic acid n-butyl ester (CAS 317385-62-9)
- 3-Thiophenecarboxylic acid, 5-propyl-, hydrazide (9CI) 438215-42-0 (CAS 438215-42-0)
- 2-Thiophenecarboxylic acid 2-chloro-2,3-dihydro-3-oxo-, methyl ester (CAS 95201-94-8)
- 2-Thiophenecarboxylic acid, 5-chloro-2,3-dihydro-3-oxo-, methyl ester (CAS 953092-76-7)
- 2-Thiophenecarboxylic acid (CAS 61209-02-7)
- 2-Thiophenecarboxylic acid, 5-amino-3-cyclopropyl-, methyl ester (CAS 851443-16-8)
- 3-Thiophenecarboxylic acid, 5-ethyl-, hydrazide (9CI) 438225-57-1 (CAS 438225-57-1)
- 3-Thiophenecarboxylic acid, 4,5-dimethyl-, hydrazide (9CI) 524934-36-9 (CAS 524934-36-9)
Recommended Standards
- 6-Methoxyquinoline N-Oxide (CAS 6563-13-9)
- 1188AE 2-Amino-4-ethyl-5-methyl-3-thiophenecarboxamide 350996-89-3 C8H12N2OS (CAS 350996-89-3)
- 1367AF 5-tert-Butylsulfanyl-furan-2-carbaldehyde 876717-92-9 C9H12O2S (CAS 876717-92-9)
- tert-butyl thiophene-2-carboxylate (CAS 939-62-8)
- 3-(1,3-Dioxaindan-5-yl)prop-2-ynoic acid (CAS 10231-46-6)
- 5-Phenyl-3H-thieno[2,3-d]pyrimidin-4-one (CAS 35978-39-3)
- 3-Iodo-1,1,1-trifluorohexane (CAS 1257535-27-5)
- 2-(2-Bromo-6-ethoxy-4-formylphenoxy)-N-(o-tolyl)acetamide (CAS 575499-03-5)
- 3-(3,3-Difluoropiperidin-1-yl)-2-(trifluoromethyl)pyridine (CAS 1774896-07-9)
- 6-Methylisoquinolin-5-amine (CAS 188120-79-8)
- 1H-Pyrrolo[3,2-b]pyridin-2(4H)-one (CAS 32501-06-7)
- 2-(trifluoroacetyl)-1,2,3,4-tetrahydro-6-isoquinolinol (CAS 216064-45-8)
- [(4-Ethylphenyl)methyl](2-methylpropyl)amine hydrochloride (CAS 1049678-11-6)
- Fibrinogen Related Peptide (CAS 80755-86-8)
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