1-(Cyclobutylmethyl)-1H-pyrazole-5-sulfonyl chloride CAS 1785243-74-4
| CAS No. | 1785243-74-4 |
| Molecular Formula | C8H11ClN2O2S |
| Molecular Weight | 234.70 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 1-(Cyclobutylmethyl)-1H-pyrazole-5-sulfonyl chloride.
1-(Cyclobutylmethyl)-1H-pyrazole-5-sulfonyl chloride (CAS 1785243-74-4) is a high-purity analytical reference standard with the molecular formula C8H11ClN2O2S and a molecular weight of 234.70 g/mol.
Structurally, 1-(Cyclobutylmethyl)-1H-pyrazole-5-sulfonyl chloride (C8H11ClN2O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 234.70 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 1-(Cyclobutylmethyl)-1H-pyrazole-5-sulfonyl chloride 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 | C8H11ClN2O2S |
| Molecular Weight | 234.70 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Cyclobutylmethyl Standards
- 1-(Cyclobutylmethyl)-1h-pyrazole-4-sulfonyl chloride (CAS 1365940-58-4)
- (cyclobutylmethyl)[(2,4-dimethoxyphenyl)methyl]amine (CAS 1096278-17-9)
- 4-(((Cyclobutylmethyl)(methyl)amino)methyl)benzoic acid (CAS 1496363-93-9)
- 4-((Cyclobutylmethyl)carbamoyl)benzoic acid (CAS 1153316-25-6)
- 2-((Cyclobutylmethyl)amino)-N-(2-fluorophenyl)acetamide (CAS 1095505-02-4)
- 2-((Cyclobutylmethyl)amino)-N-(o-tolyl)acetamide (CAS 1095592-69-0)
- 2-((Cyclobutylmethyl)amino)-N-phenylpropanamide (CAS 1218520-39-8)
- 1-(Cyclobutylmethyl)-4,4-difluorocyclohexane-1-carboxylic acid (CAS 1389315-19-8)
Recommended Standards
- 2-methyl-4,5,6,7-tetrahydro-2H-indazole-3-sulfonyl chloride (CAS 1783540-59-9)
- 2-Methoxy-2-phenylethane-1-sulfonyl chloride (CAS 1785454-64-9)
- 2-Isopropoxybenzenesulfonyl chloride (CAS 176441-68-2)
- 2-[4-(4-chlorophenyl)-1,3-thiazol-2-yl]acetonitrile (CAS 17969-48-1)
- 2-(3-Hydroxytetrahydrofuran-3-yl)acetic acid (CAS 1342003-05-7)
- 1H-indol-3-yl octanoate (CAS 133950-66-0)
- 2,3-Dimethyl-1,3,8-triazaspiro[4.5]Dec-1-en-4-one hydrochloride (CAS 1774899-05-6)
- 2-(1-(3,4-Dichlorophenyl)vinyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2559765-33-0)
- (S)-4-Phenylchroman-2-one (CAS 61198-52-5)
- tert-Butyl 4-chlorobenzoate (CAS 712-95-8)
- 5-(Difluoromethyl)furan-2-carbaldehyde (CAS 152932-57-5)
- 2-(4-Bromophenyl)-4-(chloromethyl)pyrimidine (CAS 1339210-38-6)
- 3-(2-Chlorophenyl)-1-phenyl-1H-pyrazol-5-amine (CAS 618092-68-5)
- Calcium-Like Peptide 3 (CAS 261969-05-5)
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