91076-68-5 Mono-(trimethylsilyl)phosphite trimethylsilyl dihydrogen phosphite CAS 91076-68-5
| CAS No. | 91076-68-5 |
| Molecular Formula | C3H11O3PSi |
| Molecular Weight | 154.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 91076-68-5 Mono-(trimethylsilyl)phosphite trimethylsilyl dihydrogen phosphite is closely related to a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
91076-68-5 Mono-(trimethylsilyl)phosphite trimethylsilyl dihydrogen phosphite (CAS 91076-68-5), molecular formula C3H11O3PSi and molecular weight 154.18 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, 91076-68-5 Mono-(trimethylsilyl)phosphite trimethylsilyl dihydrogen phosphite is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 154.18 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.
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 | C3H11O3PSi |
| Molecular Weight | 154.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | -1.5 |
| CAS Registry Year (est.) | 1983 |
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Recommended Standards
- 8F8C9TE3KA 2580-77-0 2,2'-Sulfonyl bisethanol 2,2'-Sulfinylbisethanol Bis(2-hydroxyethyl) sulphone Ethanol, 2,2'-sulfonylbis- Ethanol, 2,2'-sulfonyldi- (8CI) AI3-16183 BHES 50 Bis(beta-hydroxyethyl) sulfone Bis(2-hydroxyethyl) sulfone Diethanol sulfone beta,beta'-Dihydroxy ethyl sulfone EINECS 219-948-3 beta-Hydroxyethyl sulfone NSC 32716 NSC 50845 Sulfonyldiethanol 2,2'-Sulfonyldiethanol UNII-8F8C9TE3KA (CAS 2580-77-0)
- Ethyl 2-hydroxyethylsulfonate (CAS 58337-44-3)
- Tenofovir Impurity 166 (CAS 262423-81-4)
- Acetaminophen-d3 (CAS 60902-28-5)
- 1-(Bromomethyl)-3-methyl-1-(pentyloxy)cyclohexane (CAS 1342436-96-7)
- 4-((3-Chloro-2-cyanophenyl)amino)phenyl acetate (CAS 866154-00-9)
- 4-Isopropylcyclohexanol (CAS 4621-04-9)
- 3-Hydroxy-5,6,7,8-tetrahydro-10-oxa-8-aza-benzo[a]azulen-9-one (CAS 521937-07-5)
- 1-(Methoxymethyl)cyclohex-3-ene-1-carboxylic acid (CAS 1934407-34-7)
- 2-Amino-3-[(trimethylsilyl)ethynyl]pyridine (CAS 936342-23-3)
- N'-((5-(5-Nitrofuran-2-yl)-1,3,4-oxadiazol-2-yl)thio)acetohydrazide (CAS 135264-36-7)
- 2-(2,6-Dimethylcyclohex-1-en-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 287944-08-5)
- 3-[(1e)-2-nitroprop-1-en-1-yl]-1h-indole (CAS 64252-02-4)
- Exenatide (CAS 141758-74-9（free base）)
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