Aluminum(III) disilicate tetrahydrate CAS 12244-16-5
| CAS No. | 12244-16-5 |
| Molecular Formula | H6O7Si2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Aluminum(III) disilicate tetrahydrate (CAS 12244-16-5), molecular formula H6O7Si2AlH2O and molecular weight 219.21 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an inorganic composition, Aluminum(III) disilicate tetrahydrate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 219.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | H6O7Si2 2*Al 4*H2O |
| Molecular Weight | 219.21 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 1960 |
Related Aluminum Standards
- Aluminum sulfate (CAS 10043-01-3)
- Aluminum Sodium Sulfate, Reagent (CAS 10102-71-3)
- Aluminum chloride hydrate (CAS 10124-27-3)
- Aluminum oxide (AlO2) (CAS 11092-32-3)
- aluminum titanate (CAS 12004-39-6)
- Aluminum yttrium oxide (CAS 12005-21-9)
- Aluminum cerium oxide (Al11CeO18) (CAS 12005-46-8)
- Aluminum cerium oxide (CAS 12014-44-7)
Recommended Standards
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- 2-(2-amino-2,3-dihydro-1H-inden-2-yl)acetic acid hydrochloride (CAS 917391-07-2)
- Fragment-[9-31]-Semaglutide (CAS CATO-C4X-2226181)
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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