Tetramethyl 4,4’,4’’,4’’’-[[2,2’-Bi(1,3-dithiolylidene)]-4,4’,5,5’-tetrayl]tetrabenzoate CAS 1776115-39-9
| CAS No. | 1776115-39-9 |
| Molecular Formula | C38H28O8S4 |
| Molecular Weight | 740.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Tetramethyl 4,4’,4’’,4’’’-[[2,2’-Bi(1,3-dithiolylidene)]-4,4’,5,5’-tetrayl]tetrabenzoate (CAS 1776115-39-9), a certified reference material (molecular formula C38H28O8S4, MW 740.88 g/mol) for analytical method development and quality control.
Based on its molecular formula C38H28O8S4, Tetramethyl 4,4’,4’’,4’’’-[[2,2’-Bi(1,3-dithiolylidene)]-4,4’,5,5’-tetrayl]tetrabenzoate contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 740.88 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C38H28O8S4 |
| Molecular Weight | 740.88 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 25.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Sulfur Atoms | 4 |
Related Tetramethyl Standards
- 1,3,7,9-Tetramethyl-N5,N5,N11,N11-tetrakis(1-phenylethyl)-4,6,10,12-tetraoxa-5,11-diphosphadibenzo[ef,kl]heptalene-5,11-diamine (CAS 1449007-63-9)
- 2,7-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9-didecylfluorene (CAS 711026-06-1)
- 60665-85-2 2,4,6,8-Tetramethyl-2,4,6,8-tetrakis(3-(oxiranylmethoxy)propyl)cyclotetrasiloxane EINECS 262-360-7 (CAS 60665-85-2)
- (2,4,6,8-Tetramethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane-2,4,6,8-tetrayl)tetrakis(propane-3,1-diyl) tetraacrylate (CAS 71550-64-6)
- 2,4,6-Tris(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1,3,5-triazine (CAS 1447947-87-6)
- 2,2'-(5'-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-[1,1':3',1''-terphenyl]-4,4''-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (CAS 1017967-97-3)
- Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)ruthenium(III) (CAS 38625-54-6)
- 1,1,3,3-Tetramethyl-1,3-bis(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)disiloxane (CAS 71363-70-7)
Recommended Standards
- Cefditoren Impurity 15 (CAS CATO-C4X-135815)
- (+)-3,4,3,5,7-Penta-O-benzylcatechin (CAS 85443-49-8)
- (Ile3)-Pressinoic acid (CAS 34330-23-9)
- Danoprevir-[d9] (CAS 1224178-61-3)
- N,N-Dimethyl-2-oxo-2-phenylacetamide (CAS 51579-87-4)
- 2-({[6-amino-5-cyano-4-(2-nitrophenyl)-1H,4H-pyrano[2,3-c]pyrazol-3-yl]methyl}sulfanyl)-4,6-dimethylpyridine-3-carbonitrile (CAS 328068-41-3)
- (4-Ethoxyphenyl)(phenyl)methanone (CAS 27982-06-5)
- 2-Chloro-7,8-dihydroquinoxalin-5(6H)-one (CAS 1211590-49-6)
- 2-((4-Amino-4H-1,2,4-triazol-3-yl)thio)acetonitrile (CAS 74599-36-3)
- 4,6-Dichloro-2-(thiophen-2-yl)pyrimidine (CAS 57059-13-9)
- Fluoren-3-ol-d9 (Major) (CAS CATO-CCHM705020)
- {[4-(trifluoromethoxy)phenyl]methyl}thiourea (CAS 296277-22-0)
- 1-(Pentan-3-yl)-1H-pyrazol-5-amine (CAS 90206-24-9)
- Semaglutide Impurity 246 (CAS CATO-C4X-2226246)
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