68855-54-9 Diatomite Diatomaceous earth Kieselguhr, soda ash flux-calcined CCRIS 3662 Diatomaceous silica, flux-calcined EINECS 272-489-0 Flux-calcined diatomaceous earth EC 272-489-0 Amorphous silica: Flux-calcined diatomaceous earth Silica, amorphous, diatomaceous earth Silica amorphous diatomaceous earth (uncalcined) Silica, amorphous, including natural diatomaceous earth CAS 68855-54-9
| CAS No. | 68855-54-9 |
| Molecular Formula | O2Si |
| Molecular Weight | 60.08 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 68855-54-9 Diatomite Diatomaceous earth Kieselguhr, soda ash flux-calcined CCRIS 3662 Diatomaceous silica, flux-calcined EINECS 272-489-0 Flux-calcined diatomaceous earth EC 272-489-0 Amorphous silica: Flux-calcined diatomaceous earth Silica, amorphous, diatomaceous earth Silica amorphous diatomaceous earth (uncalcined) Silica, amorphous, including natural diatomaceous earth.
68855-54-9 Diatomite Diatomaceous earth Kieselguhr, soda ash flux-calcined CCRIS 3662 Diatomaceous silica, flux-calcined EINECS 272-489-0 Flux-calcined diatomaceous earth EC 272-489-0 Amorphous silica: Flux-calcined diatomaceous earth Silica, amorphous, diatomaceous earth Silica amorphous diatomaceous earth (uncalcined) Silica, amorphous, including natural diatomaceous earth (CAS 68855-54-9) is a high-purity analytical reference standard with the molecular formula O2Si and a molecular weight of 60.08 g/mol.
Structurally, 68855-54-9 Diatomite Diatomaceous earth Kieselguhr, soda ash flux-calcined CCRIS 3662 Diatomaceous silica, flux-calcined EINECS 272-489-0 Flux-calcined diatomaceous earth EC 272-489-0 Amorphous silica: Flux-calcined diatomaceous earth Silica, amorphous, diatomaceous earth Silica amorphous diatomaceous earth (uncalcined) Silica, amorphous, including natural diatomaceous earth (O2Si) contains an inorganic composition. The molecule exhibits a degree of unsaturation (DBE) of 0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 60.08 g/mol, it falls into the low-molecular-weight range.
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 | O2Si |
| Molecular Weight | 60.08 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Freely soluble in water |
| Stability | Stable under recommended storage conditions |
| CAS Registry Year (est.) | 1976 |
Recommended Standards
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