Dimethyl 2-(bis(methylthio)methylene)malonate CAS 19607-08-0
| CAS No. | 19607-08-0 |
| Molecular Formula | C8H12O4S2 |
| Molecular Weight | 236.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Dimethyl 2-(bis(methylthio)methylene)malonate is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Dimethyl 2-(bis(methylthio)methylene)malonate (CAS 19607-08-0), a certified reference material (molecular formula C8H12O4S2, MW 236.31 g/mol) for analytical method development and quality control.
Dimethyl 2-(bis(methylthio)methylene)malonate (C8H12O4S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C8H12O4S2 |
| Molecular Weight | 236.31 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1962 |
| Sulfur Atoms | 2 |
Related Dimethyl Standards
- Ethyl 2,6-dimethyl-4-(propan-2-yloxy)benzoate (CAS 1368277-98-8)
- 3-(3,5-Dimethyl-1H-pyrazol-1-yl)-1-(piperazin-1-yl)propan-1-one (CAS 1468562-03-9)
- Dimethyl 2-(1,2-dithiolan-3-yl)malonate (CAS 195724-22-2)
- 1-(9,9-Dimethyl-9H-fluoren-2-yl)ethan-1-one (CAS 72322-75-9)
- 2,5-Dimethyl-1-(2-morpholinoethyl)-1H-pyrrole-3-carbaldehyde (CAS 887694-84-0)
- 2-Benzyl-5,6-dimethyl-1H-benzo[d]imidazole (CAS 58506-60-8)
- N,1-Dimethyl-N-phenyl-1H-indol-3-amine (CAS 30065-72-6)
- 4-((3,5-Dimethyl-1H-pyrazol-1-yl)methyl)thiophene-2-carboxylic acid (CAS 1006485-96-6)
Recommended Standards
- (1-(2,6-Dimethoxyphenyl)-2,2-dimethylcyclopropyl)methanol (CAS 2229466-66-2)
- 1-Butyl-3-(4-ethoxyphenyl)urea (CAS 195523-28-5)
- (1-Benzyl-1H-indol-5-yl)methanamine (CAS 887583-42-8)
- N-(3-(Diethylamino)-4-methoxyphenyl)acetamide (CAS 19433-93-3)
- 4-Ethyl-5-(methoxymethyl)-1H-pyrazol-3-amine (CAS 161487-38-3)
- Z-Lys-OBzl · benzenesulfonate (CAS 68973-36-4)
- 2,2'-(Thiophene-2,5-diyl)diacetic acid (CAS 710-23-6)
- Tert-butyl (R)-(piperidin-2-ylmethyl)carbamate hydrochloride (CAS 1217703-50-8)
- 6-Amino-4-methylpyridine-3-sulfonic acid (CAS 691383-27-4)
- (3R,4S)-3-(Hydroxymethyl)hexahydropyridazin-4-ol (CAS 443649-12-5)
- 5-(1-Oxido-4,5-dihydro-3H-isothiazol-1-yl)furan-2-carboxylic acid (CAS 2778161-99-0)
- 4-Methyl-2,5-dimethoxyamphetamine Hydrochloride CI (AS) (STP) (1425000) (CAS 15589-00-1)
- 4-Bromo-5-((4-methylpyrimidin-2-yl)thio)furan-2-carbaldehyde (CAS 886502-49-4)
- Insulin Degludec Impurity 20 (CAS CATO-C4X-215720)
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