7783-11-1 CPM8SC708E Diammonium sulfite monohydrate UNII-CPM8SC708E Ammonium sulfite monohydrate [MI] Sulfurous acid, diammonium salt, monohydrate CAS 7783-11-1
| CAS No. | 7783-11-1 |
| Molecular Formula | H2O3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7783-11-1 CPM8SC708E Diammonium sulfite monohydrate UNII-CPM8SC708E Ammonium sulfite monohydrate [MI] Sulfurous acid, diammonium salt, monohydrate (H2O3SH2OH3N) contains a sulfone group. It is notably hygroscopic; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
7783-11-1 CPM8SC708E Diammonium sulfite monohydrate UNII-CPM8SC708E Ammonium sulfite monohydrate [MI] Sulfurous acid, diammonium salt, monohydrate (CAS 7783-11-1), molecular formula H2O3SH2OH3N and molecular weight 117.12 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 7783-11-1 CPM8SC708E Diammonium sulfite monohydrate UNII-CPM8SC708E Ammonium sulfite monohydrate [MI] Sulfurous acid, diammonium salt, monohydrate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | H2O3S H2O 2*H3N |
| Molecular Weight | 117.12 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
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- 1-[4-(1-methyl-1H-pyrazol-4-yl)-6-(trifluoromethyl)pyrimidin-2-yl]piperidin-4-amine (CAS 1171519-09-7)
- 2-(2-Fluoro-3-methoxyphenyl)acetonitrile (CAS 672931-80-5)
- 4-([1,1-Biphenyl]-4-yloxy)-2-(trifluoromethyl)-phenylamine (CAS 10141-35-2)
- 6-Bromo-8-methoxy-N,N,2-trimethylquinolin-4-amine (CAS 89446-16-2)
- N-Cyclohexyl-N-ethyl-3-pyrrolidinaminedihydrochloride (CAS 1219980-59-2)
- 4H-1,4-Benzothiazine-2-carboxylic acid, 1-oxide (CAS 246854-66-0)
- 3-Bromo-4-cyclopropoxy-N,N-dimethylpicolinamide (CAS 1243456-85-0)
- Fibrinopeptide A, human TFA (CAS 61533-47-9)
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