7783-18-8 BKH1729645 Ammonium thiosulfate Ammonium thiosulphate Thiosulfuric acid, diammonium salt Thiosulfuric acid (H2S2O3), ammonium salt (1:2) Thiosulfuric acid (H2S2O3), diammonium salt Ammo hypo Ammonium hyposulfite Ammonium thiosulfate ((NH4)2S2O3) Caswell No. 048A Diammonium thiosulfate EINECS 231-982-0 EPA Pesticide Chemical Code 080103 HSDB 2688 Thio-Sul UNII-BKH1729645 EC 231-982-0 CAS 7783-18-8
| CAS No. | 7783-18-8 |
| Molecular Formula | H2O3S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 7783-18-8 BKH1729645 Ammonium thiosulfate Ammonium thiosulphate Thiosulfuric acid, diammonium salt Thiosulfuric acid (H2S2O3), ammonium salt (1:2) Thiosulfuric acid (H2S2O3), diammonium salt Ammo hypo Ammonium hyposulfite Ammonium thiosulfate ((NH4)2S2O3) Caswell No. 048A Diammonium thiosulfate EINECS 231-982-0 EPA Pesticide Chemical Code 080103 HSDB 2688 Thio-Sul UNII-BKH1729645 EC 231-982-0 (CAS 7783-18-8), a certified reference material (molecular formula H2O3S2H3N, MW 131.16 g/mol) for analytical method development and quality control.
Based on its molecular formula H2O3S2H3N, 7783-18-8 BKH1729645 Ammonium thiosulfate Ammonium thiosulphate Thiosulfuric acid, diammonium salt Thiosulfuric acid (H2S2O3), ammonium salt (1:2) Thiosulfuric acid (H2S2O3), diammonium salt Ammo hypo Ammonium hyposulfite Ammonium thiosulfate ((NH4)2S2O3) Caswell No. 048A Diammonium thiosulfate EINECS 231-982-0 EPA Pesticide Chemical Code 080103 HSDB 2688 Thio-Sul UNII-BKH1729645 EC 231-982-0 contains a sulfone group; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 131.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 7783-18-8 BKH1729645 Ammonium thiosulfate Ammonium thiosulphate Thiosulfuric acid, diammonium salt Thiosulfuric acid (H2S2O3), ammonium salt (1:2) Thiosulfuric acid (H2S2O3), diammonium salt Ammo hypo Ammonium hyposulfite Ammonium thiosulfate ((NH4)2S2O3) Caswell No. 048A Diammonium thiosulfate EINECS 231-982-0 EPA Pesticide Chemical Code 080103 HSDB 2688 Thio-Sul UNII-BKH1729645 EC 231-982-0 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 | H2O3S2 2*H3N |
| Molecular Weight | 131.16 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 | 2 |
Recommended Standards
- 99A04ICQ3J 7783-85-9 Ferrous ammonium sulfate hexahydrate Ammonium iron(II) sulfate, hexahydrate (2:1:2:6) Sulfuric acid, ammonium iron(2+) salt (2:2:1), hexahydrate Ammonium ferrous sulfate hexahydrate Ferrous ammonium sulfate, hexahydrate Iron ammonium sulfate hydrate Sulfuric acid, ammonium iron(2+) salt, hexahydrate UNII-99A04ICQ3J (CAS 7783-85-9)
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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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