Azosulfon III [Spectrophotometric reagent for alkaline rare earth metals and indicator for precipitation titration of barium sulfate] CAS 68504-35-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 68504-35-8 |
| Molecular Formula | C22H12N4Na4O14S4 |
| Molecular Weight | 776.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Azosulfon III [Spectrophotometric reagent for alkaline rare earth metals and indicator for precipitation titration of barium sulfate] (CAS 68504-35-8) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C22H12N4Na4O14S4. Molecular weight: 776.57 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C22H12N4Na4O14S4 |
| Molecular Weight | 776.57 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 4 |
Recommended Standards
- [[1,1′-Biphenyl]-2-ylbis(1,1-dimethylethyl)phosphine][1,1,1-trifluoro-N-[(trifluoromethyl)sulfonyl]methanesulfonamidato-κN]gold (CAS 1036000-94-8)
- (R)-8,8'-Bis(3,5-bis(trifluoromethyl)phenyl)-2,2',3,3'-tetrahydro-1,1'-spirobi[phenalene]-9,9'-diol (CAS 2687968-84-7)
- Arsenazo III (CAS 1668-00-4)
- (R,R)-iPr-Dbfox (CAS 2634687-86-6)
- 2-(5-chloro-1,3-benzoxazol-2-yl)ethanamine,HCl (CAS 871688-91-4)
- 6-Amino-2-((2,3-difluorobenzyl)thio)pyrimidin-4(3H)-one (CAS 503271-69-0)
- n,3-Dimethylcyclopentan-1-amine, mixture of diastereomers (CAS 252854-33-4)
- 2-(Aminomethyl)-5-cyano-6-(difluoromethyl)pyridine-3-carboxaldehyde (CAS 1804418-53-8)
- Tert-butyl 2-(3-(4-nitrophenyl)-1H-pyrazol-1-yl)acetate (CAS 1355334-94-9)
- Tripeptide-10 citrulline (CAS 960531-53-7)
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 13829788188 / jacky.chen@cato-chem.com