5,5',5'',5'''-([2,2'-Bi(1,3-dithiolylidene)]-4,4',5,5'-tetrayl)tetraisophthalic acid CAS 2172997-02-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 2172997-02-1 |
| Molecular Formula | C38H20O16S4 |
| Molecular Weight | 860.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,5',5'',5'''-([2,2'-Bi(1,3-dithiolylidene)]-4,4',5,5'-tetrayl)tetraisophthalic acid (CAS 2172997-02-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C38H20O16S4. Molecular weight: 860.82 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C38H20O16S4 |
| Molecular Weight | 860.82 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) | 29.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Sulfur Atoms | 4 |
Related Bi Standards
- 4,4’,4’’,4’’’-[[2,2’-Bi(1,3-dithiolylidene)]-4,4’,5,5’-tetrayl]tetrabenzoic Acid (CAS 1392413-73-8)
- 3,3',3'',3'''-([2,2'-Bi(1,3-dithiolylidene)]-4,4',5,5'-tetrayl)tetrabenzoicacid (CAS 2757729-91-0)
- 4,4',4'',4'''-([2,2'-Bi(1,3-dithiolylidene)]-4,4',5,5'-tetrayl)tetrabenzaldehyde (CAS 1639134-02-3)
- 4,4',4'',4'''-([2,2'-Bi(1,3-dithiolylidene)]-4,4',5,5'-tetrayl)tetrabenzonitrile (CAS 1356336-67-8)
- [2,2'-Bi(1,3-dithiolylidene)]-4,4',5,5'-tetracarbonitrile (CAS 55052-32-9)
- [2,2'-Bi(1,3-dithiolylidene)]-4-carbaldehyde (CAS 68128-94-9)
Recommended Standards
- 5,8-Bis(5-bromothiophen-2-yl)-2,3-bis(3-((2-ethylhexyl)oxy)phenyl)quinoxaline (CAS 1364488-29-8)
- Palbociclib Impurity 144 (CAS CATO-C4X-1125144)
- 5,8-Bis(5-bromo-2-thienyl)-2,3-bis[3-(octyloxy)phenyl]quinoxaline (CAS 1100761-34-9)
- 3-Amino-2,3-dihydrobenzofuran-7-carboxylic acid (CAS 1273677-49-8)
- 10-(1H-imidazol-1-yl)decan-1-ol (CAS 186788-38-5)
- ethyl 6-methylpyrrolo[2,1-b]thiazole-7-carboxylate (CAS 1038509-50-0)
- 6-Morpholinonicotinimidamide (CAS 1016872-90-4)
- (2-Benzenesulfonylamino-acetylamino)-acetic acid (2-benzenesulfonylamino-acetylamino)acetic acid 2-(2-benzenesulfonamidoacetamido)acetic acid 389070-77-3 (CAS 389070-77-3)
- Mephenesin (CAS 59-47-2)
- Semaglutide Impurity 190 (CAS CATO-C4X-2226190)
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