Isosulfan Blue CAS 68238-36-8
| CAS No. | 68238-36-8 |
| Molecular Formula | C27H31N2O6S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Isosulfan Blue meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
CATO supplies Isosulfan Blue (CAS 68238-36-8), a certified reference material (molecular formula C27H31N2O6S2Na, MW 566.66 g/mol) for analytical method development and quality control.
Structurally, Isosulfan Blue (C27H31N2O6S2Na) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.5, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 566.66 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C27H31N2O6S2 Na |
| Molecular Weight | 566.66 g/mol |
| Purity | >95% |
| 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) | 13.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Isosulfan Standards
- Isosulfan Blue impurity 8 (CAS 2284468-92-2)
- Isosulfan Blue Impurity 5 (CAS 2828260-22-4)
- Isosulfan Blue impurity 10 (CAS 43035-11-6)
- Isosulfan Blue Impurity D (CAS CATO-C4X-30452)
- Isosulfan Blue impurity 6 (CAS CATO-C4X-30456)
- Isosulfan Blue impurity 7 (CAS CATO-C4X-30457)
- Isosulfan Blue impurity 9 (CAS CATO-C4X-30459)
Recommended Standards
- tert-Butyl (2-oxo-2,3-dihydropyrimidin-4-yl)carbamate (CAS 172405-14-0)
- Methyl 3,6-dimethylisoxazolo[5,4-b]pyridine-4-carboxylate (CAS 1011360-03-4)
- N-Methyl-N-(3-pyrrolidinylmethyl)-1-butanaminedihydrochloride (CAS 1219964-16-5)
- Olprinone Impurity N1 (CAS 106730-70-5)
- 2-(Naphthalen-1-yl)-5-phenyl-1,3,4-oxadiazole (CAS 897-18-7)
- 4-nitro-1H-indene-1,3(2H)-dione (CAS 4535-07-3)
- 1-(2,3-Dichlorophenyl)-3-(prop-2-yn-1-yl)urea (CAS 1437482-89-7)
- Calcium arsenite (CAS 27152-57-4)
- 3,5-Bis(aminomethyl)phenol (CAS 1243394-03-7)
- Endo-Pro36-Tirzepatide (CAS CATO-CPTD788688)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com