Methyl 4-(chlorosulfonyl)thiophene-3-carboxylate CAS 59337-85-8
| CAS No. | 59337-85-8 |
| Molecular Formula | C6H5ClO4S2 |
| Molecular Weight | 240.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Methyl 4-(chlorosulfonyl)thiophene-3-carboxylate (C6H5ClO4S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. 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 240.68 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 Methyl 4-(chlorosulfonyl)thiophene-3-carboxylate (CAS 59337-85-8), a certified reference material (molecular formula C6H5ClO4S2, MW 240.68 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.
As a certified reference material (CRM), Methyl 4-(chlorosulfonyl)thiophene-3-carboxylate 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 | C6H5ClO4S2 |
| Molecular Weight | 240.68 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1973 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related Methyl Standards
- 5-(Chlorosulfonyl)-3-methylthiophene-2-carboxylic acid (CAS 1114823-93-6)
- 4-(Chlorosulfonyl)-5-methylthiophene-2-carboxylic acid (CAS 1258651-16-9)
- 2-[5-(chlorosulfonyl)thiophen-2-yl]acetic acid (CAS 869709-90-0)
- Methyl 4-(chlorosulfonyl)thiophene-2-carboxylate (CAS 97272-03-2)
- Methyl 5-(chlorosulfonyl)thiophene-2-carboxylate (CAS 69816-03-1)
- Methyl 5-(chlorosulfonyl)thiophene-3-carboxylate (CAS 69816-04-2)
- Methyl 1-(chlorosulfonyl)cyclohexanecarboxylate (CAS 1312138-63-8)
- Methyl 2-(chlorosulfonyl)cyclohexane-1-carboxylate (CAS 1461715-54-7)
Recommended Standards
- Methyl 5-(4-chlorophenyl)-5-oxopentanoate (CAS 71354-29-5)
- Methyl 3-(4-chlorophenyl)-2,3-dimethyloxirane-2-carboxylate (CAS 99334-05-1)
- Methyl 2-(2-chlorobenzyl)-3-oxobutanoate (CAS 676348-55-3)
- Ethyl 8-chlorochromane-3-carboxylate (CAS 2109627-60-1)
- 2-Amino-3-(methylsulfonyl)phenol (CAS 129318-50-9)
- Ethyl 3-(4-bromophenyl)-3-hydroxy-2,2-dimethylpropanoate (CAS 1457266-25-9)
- tert-Butyl (8-bromo-4-(dipropylcarbamoyl)-3H-benzo[b]azepin-2-yl)carbamate (CAS 1226791-82-7)
- 3-(Pyridin-2-yl)-1H-pyrazol-5-amine (CAS 92352-29-9)
- 2-(Boc-amino)heptanoic Acid (CAS 64769-01-3)
- N3,N3,N5,N5-Tetramethyl-1H-1,2,4-triazole-3,5-diamine (CAS 18377-94-1)
- 4-(1,1,1-Trifluoro-2-methylpropan-2-yl)phenol (CAS 886843-09-0)
- L-Glutamic acid 5-allyl ester (CAS 145058-42-0)
- 1H-Indol-5-yl trifluoromethanesulfonate (CAS 128373-13-7)
- (Met(O)2?)-Glucagon (1-29) (human, rat, porcine) (CAS 75217-63-9)
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