Methylene Blue CAS 61-73-4
Purity >70%In StockPharmaceutical Standards
| CAS No. | 61-73-4 |
| Molecular Formula | C16H18N3S Cl |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Methylene Blue (CAS 61-73-4), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C16H18N3S Cl. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C16H18N3S Cl |
| Molecular Weight | 319.85 g/mol |
| Purity | >70% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Methylene Standards
- γ-Methylene-γ-butyrolactone (CAS 10008-73-8)
- 4,4＇-Methylene-Bis(2-chloroaniline) (CAS 101-14-4)
- 5-Methylene-2-phenyl-1,3-dioxolan-4-one (CAS 101822-11-1)
- 2-Methylene-1,3,6-trioxocane (CAS 105649-50-1)
- 6-Methyl-3-methylene-3,4-dihydroquinoxalin-2(1H)-one (CAS 106480-88-0)
- 5-Methylene-2(5H)-furanone (CAS 108-28-1)
- 3-(2-Methylene-4-phenylbutanoyl)oxazol-2(3H)-one (CAS 1151767-07-5)
- (Methylene-d2)gibberellin A5 (CAS 120396-32-9)
Recommended Standards
- Azidoethyl-SS-ethylazide (CAS 352305-38-5)
- myo-Inositol (CAS 87-89-8)
- N-(4-Acetamidophenyl)-1-methyl-6-oxo-1,6-dihydropyridazine-3-carboxamide (CAS 784158-24-3)
- ((2S,5R)-5-(6-Amino-2-iodo-9H-purin-9-yl)tetrahydrofuran-2-yl)methanol (CAS 122970-38-1)
- 1-(4-(Benzyloxy)-5-bromo-2-hydroxyphenyl)ethanone (CAS 860537-86-6)
- Epinastine Impurity 27 (CAS CATO-C4X-184027)
- Semaglutide impurity 64 (CAS CATO-C4X-222664)
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