Calcium 4-aminosalicylate Heptahydrate CAS 133-15-3
| CAS No. | 133-15-3 |
| Molecular Formula | 2*C7H6NO3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 210.22 g/mol gives Calcium 4-aminosalicylate Heptahydrate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Calcium 4-aminosalicylate Heptahydrate (CAS 133-15-3) is a high-purity analytical reference standard with the molecular formula C7H6NO3CaH2O and a molecular weight of 210.22 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Calcium 4-aminosalicylate Heptahydrate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 210.22 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures Calcium 4-aminosalicylate Heptahydrate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | 2*C7H6NO3 Ca 7*H2O |
| Molecular Weight | 210.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| 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) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Calcium Standards
- Phenyl 4-Aminosalicylate (CAS 133-11-9)
- Sodium aminosalicylate Impurity 5 (CAS 15540-79-1)
- Sodium aminosalicylate Impurity 4 (CAS 17540-51-1)
- Sodium aminosalicylate EP Impurity A(Mesalazine EP Impurity B) (CAS 591-27-5)
- Sodium Aminosalicylate Dihydrate (CAS 6018-19-5)
- Sodium aminosalicylate (CAS 8031-28-5)
Recommended Standards
- 6-Methyl-2-((2-methylallyl)thio)pyrimidin-4-ol (CAS 325852-91-3)
- Ethyl 2-amino-3-(1H-imidazol-5-yl)propanoate (CAS 184295-36-1)
- LQEQ-19 (mouse, rat) (CAS 322644-72-4)
- lithium(1+) ion 2-(1-hydroxyethyl)benzoate (CAS 1909348-16-8)
- Ethyl 4-bromothieno[2,3-c]pyridine-2-carboxylate (CAS 1809004-78-1)
- Trospium Impurity 7 (CAS CATO-C4X-20387)
- 2,3,4,5-Tetrahydro-1h-pyrido[4,3-b]indole-8-carboxylic acid (CAS 929345-60-8)
- 3-Amino-4-oxo-N-((3-((4-oxo-2-(((tetrahydrofuran-2-yl)methyl)carbamoyl)quinazolin-3(4H)-yl)amino)furan-2-yl)methyl)-3,4-dihydroquinazoline-2-carboxamide (CAS 646497-34-9)
- 1h-pyrazol[3,4]pyridin-3-amine 1h-pyrazolo[3,4-b]pyridin-3-amine 1h-pyrazolo[3,4-b]pyridin-3-ylamine 1h-pyrazolo[3,4-b]pyridine-3-amine 3-Amino-pyrazolo[3,4-b]pyridine 3-amino-1h-pyrazolo[3,4-b]pyridine 3-aminopyrazolo[3,4-b]pyridine 3-aminopyrazolo[5,4-b]pyridine 6752-16-5 (CAS 6752-16-5)
- Semaglutide Impurity 140 (CAS CATO-C4X-2226140)
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 18665070610 / Nicole.chen@cato-chem.com