N1-thieno[2,3-d]pyrimidin-4-yl-2-chloroethanohydrazide CAS 680211-00-1
| CAS No. | 680211-00-1 |
| Molecular Formula | C8H7ClN4OS |
| Molecular Weight | 242.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, N1-thieno[2,3-d]pyrimidin-4-yl-2-chloroethanohydrazide (C8H7ClN4OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 242.69 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies N1-thieno[2,3-d]pyrimidin-4-yl-2-chloroethanohydrazide (CAS 680211-00-1), a certified reference material (molecular formula C8H7ClN4OS, MW 242.69 g/mol) for analytical method development and quality control.
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 | C8H7ClN4OS |
| Molecular Weight | 242.69 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related N Standards
- 4-Phenyl-thieno[2,3-d]pyrimidin-2-ol (CAS 51687-42-4)
- Methyl thieno[2,3-b]quinoline-2-carboxylate (CAS 51925-46-3)
- Thieno[2,3-b]quinoline-2-carbohydrazide (CAS 478079-37-7)
- Thieno[3,2-b]thiophene-2-sulfonyl chloride (CAS 2503207-46-1)
- Thieno[3,2-b]thiophene-3-sulfonyl chloride (CAS 2657622-90-5)
- Methyl thieno[2',3':4,5]imidazo[2,1-b]thiazole-2-carboxylate (CAS 477851-85-7)
- 1-(Thieno[3,2-d]pyrimidin-4-yl)piperidine-4-carbaldehyde (CAS 916766-91-1)
- 4H-thieno[3,2-c]thiochromene-2-carboxylic acid (CAS 26268-05-3)
Recommended Standards
- 5-((5-Chloropyridin-2-yl)methoxy)-1,3,4-thiadiazol-2-amine (CAS 2565640-27-7)
- (2E)-3-(1-butyl-5-chloro-3-methyl-1H-pyrazol-4-yl)acrylic acid (CAS 1006442-96-1)
- Lithium hexafluoroantimonate(V) 97% (CAS 18424-17-4)
- ETHYL 2-(6-CHLOROPYRIDIN-3-YL)-2-(DIMETHYLAMINO)ACETATE (CAS 1007879-48-2)
- N-(2,6-Dimethylphenyl)-2-hydroxybenzamide (CAS 67520-11-0)
- (S)-3-amino-2-(2-bromobenzyl)propanoic acid (CAS 1260606-48-1)
- (S)-2-(((Benzyloxy)carbonyl)amino)-2-methylhept-6-enoic acid (CAS 1445137-79-0)
- Goserelin Impurity 54 (CAS CATO-C4X-192054)
- Paroxetine (CAS 61869-08-7)
- 6-Benzyl-2-(2,6-difluorobenzamido)-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxamide hydrochloride (CAS 1177977-21-7)
- 4-Amino-3-(difluoromethyl)-5-fluoropicolinaldehyde (CAS 1806810-47-8)
- 6-Amino-2-(phenylamino)pyrimidin-4(3H)-one (CAS 103041-17-4)
- Tirzepatide Impurity 1 (CAS 2460751-66-8)
- Peptide Fmoc-Thi-Thi-OH (CAS CATO-CPTD788552)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com