Benzenesulfonic acid, 4-methyl-, potassium salt CAS 16106-44-8
| CAS No. | 16106-44-8 |
| Molecular Formula | C7H7O3S |
| Molecular Weight | N/A |
| 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 Benzenesulfonic acid, 4-methyl-, potassium salt.
CATO supplies Benzenesulfonic acid, 4-methyl-, potassium salt (CAS 16106-44-8), a certified reference material (molecular formula C7H7O3SK, MW 210.29 g/mol) for analytical method development and quality control.
Structurally, Benzenesulfonic acid, 4-methyl-, potassium salt (C7H7O3SK) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.5, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 210.29 g/mol, it falls into the medium-molecular-weight range. 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.
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 | C7H7O3S K |
| Molecular Weight | 210.29 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Sulfur Atoms | 1 |
Related Benzenesulfonic Standards
- Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-[4-(sulfophenyl)-2H-1,2,3-triazol-2-yl]-, sodium salt (1:x) (CAS 106906-28-9)
- Benzenesulfonic acid, 4,4',4'',4'''-[carbonylbis[imino-5,1,3-benzenetriylbis(carbonylimino)]]tetrakis-, tetrasodium salt (CAS 111150-22-2)
- Benzenesulfonic Acid Impurity 4 (CAS 116-50-7)
- Benzenesulfonic acid, 2,5-dihydroxy-, calcium salt, hydrate (2:1:?) (CAS 117552-78-0)
- Benzenesulfonic acid, 4-[(2-methyl-2-propen-1-yl)oxy]-, sodium salt (CAS 1208-67-9)
- Benzenesulfonic Impurity 3 (CAS 1352414-81-3)
- Benzenesulfonic Impurity 2 (CAS 1352414-88-0)
- Benzenesulfonic acid, (acetylamino)- (CAS 138721-63-8)
Recommended Standards
- N-cyclohexyl-6-((methylsulfinyl)methyl)-2-(pyridin-4-yl)pyrimidin-4-amine (CAS 339278-97-6)
- 3-Amino-1-((5-chlorothiophen-2-yl)methyl)pyridin-2(1h)-one (CAS 1248242-42-3)
- Methyl(S)-1-benzyl-5-oxopyrrolidine-2-carboxylate (CAS 57171-00-3)
- 3-(4,4-Difluorocyclohexyl)-3-oxopropanenitrile (CAS 1546403-48-8)
- (4-(6-Chloro-4-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)(phenyl)methanone (CAS 1089330-48-2)
- (2-Chloro-3-iodophenyl)methanamine (CAS 1261861-09-9)
- 4-Hydrazono-2-(thiophen-2-yl)-1,4-dihydropyrimidine (CAS 125926-68-3)
- Betahistine Impurity 45 (CAS 128225-22-9)
- (7E, 10E)-7,10-Hexadecadienoic Acid (CAS 2936-83-6)
- Des-[Gly]31-Semaglutide(x TFA Salt) (CAS 873874-39-6(free base))
Why CATO?
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