Sulfaguanidine EP Impurity B CAS 547-44-4
| CAS No. | 547-44-4 |
| Molecular Formula | C7H9N3O3S |
| Molecular Weight | 215.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Sulfaguanidine EP Impurity B.
Sulfaguanidine EP Impurity B (CAS 547-44-4) is a high-purity analytical reference standard with the molecular formula C7H9N3O3S and a molecular weight of 215.23 g/mol.
Structurally, Sulfaguanidine EP Impurity B (C7H9N3O3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 215.23 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H9N3O3S |
| Molecular Weight | 215.23 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Sulfaguanidine Standards
Recommended Standards
- Meloxicam Impurity 8 (CAS 125372-22-7)
- 2-Amino-4-(methylsulfonyl)benzoic Acid (CAS 393085-45-5)
- Sulfadimethoxine EP Impurity C (CAS 121-62-0)
- n-(2-(Difluoromethoxy)benzyl)propan-1-amine (CAS 1016721-72-4)
- 2,4-Dichlorophenoxyacetic Acid-13C6 (CAS 150907-52-1)
- 4-Bromothiophene-3-carbothioic acid amide (CAS 1379334-23-2)
- 2,3-Dibromo-6-methylaniline (CAS 1700406-02-5)
- 2-((3-Chlorobenzyl)(methyl)amino)ethanol (CAS 92015-25-3)
- 6-Bromo-5-(difluoromethyl)-3-(hydroxymethyl)pyridin-2-ol (CAS 1805171-27-0)
- 3-Benzhydryl-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine (CAS 879072-51-2)
- 6-(difluoromethoxy)pyridin-2-amine (CAS 1131007-43-6)
- 2-Allyl-4-chloro-1-(isopentyloxy)benzene (CAS 1443355-61-0)
- 2-(4-Fluorophenyl)imidazo[1,2-a]pyridine (CAS 347-12-6)
- Semaglutide impurity 83 (CAS CATO-C4X-222683)
Why CATO?
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