(S)-2,2',3,3'-Tetrahydro-1,1'-spirobi[phenalene]-9,9'-diol CAS 2687968-77-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 2687968-77-8 |
| Molecular Formula | C25H20O2 |
| Molecular Weight | 352.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (S)-2,2',3,3'-Tetrahydro-1,1'-spirobi[phenalene]-9,9'-diol (CAS 2687968-77-8), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C25H20O2. Molecular weight: 352.43 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C25H20O2 |
| Molecular Weight | 352.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
Related S Standards
- Ethyl 3-(9-(tetrahydro-2H-pyran-2-yl)-9H-purin-6-yl)benzoate (CAS 185386-89-4)
- 4-{[(8-Oxo-1,5,6,8-tetrahydro-2H-1,5-methanopyrido[1,2-a][1,5]diazocin-3(4H)-yl)carbonyl]amino}benzoic acid (CAS 1218258-35-5)
- 2-{[(8-Oxo-1,5,6,8-tetrahydro-2H-1,5-methanopyrido[1,2-a][1,5]diazocin-3(4H)-yl)carbonyl]amino}benzoic acid (CAS 1225176-53-3)
- (11aR)-10,11,12,13-Tetrahydro-N,N,3,7-tetramethyl-diindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin-5-amine (CAS 930784-57-9)
- 1-((5-Methyl-1,2,3,4-tetrahydro-[1,1'-biphenyl]-4-yl)amino)-2-oxoethyl pyrimidine-5-carboxylate (CAS 102207-80-7)
- 1-((1-(Tetrahydro-2H-thiopyran-4-yl)piperidin-4-yl)methyl)-3-(thiophen-2-ylmethyl)urea (CAS 2034302-23-1)
- 2-(8-Oxo-5,6,8,9-tetrahydro[1,3]dioxolo[4,5-g]furo[3,4-b]quinolin-9-yl)benzenecarboxylic acid (CAS 882747-22-0)
- 3-Phenyl-1-(tetrahydro-2H-pyran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 1028092-65-0)
Recommended Standards
- (E)-2-benzyl-3-(2-(4-methylbenzylidene)hydrazinyl)quinoxaline (CAS 477888-86-1)
- 1-(4-Ethoxyphenyl)-N-(3-methylbenzyl)-5-oxopyrrolidine-3-carboxamide (CAS 446053-83-4)
- (E)-[(3-Fluorophenyl)methoxy]({2-[(4-methylphenyl)sulfanyl]pyridin-3-yl}methylidene)amine (CAS 477885-95-3)
- 4,4'-(Diazoamino)bis(5-methoxy-2-methylbenzenesulfonic Acid) (CAS 60112-02-9)
- Cyclooctadeca-1,3,5,7,9,11,13,15,17-nonaene (CAS 2040-73-5)
- 5-Cyclopropoxy-6-ethyl-N,N-dimethylpicolinamide (CAS 1243362-32-4)
- (5-Phenylfuran-2-yl)boronic acid (CAS 1628569-51-6)
- 4-(2,5-Difluorophenyl)azetidin-2-one (CAS 1343930-99-3)
- 1-(4-Bromophenyl)-3-chloropropan-1-ol (CAS 25574-19-0)
- Semaglutide impurity 28 (CAS CATO-C4X-222628)
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