YC9U0409D3 3724-89-8 Cystaphos Phosphocysteamine sodium Ethanethiol, 2-amino-, dihydrogen phosphate (ester), monosodium salt Phosphorothioic acid, S-(2-aminoethyl) ester, monosodium salt Sodium hydrogen -S-(2-aminoethyl)thiophosphate S-(2-Aminoethyl) thiophosphate monosodium salt S-(2-Aminoethyl)thiophosphate monosodium salt Cistaphos Cystafos Cystaphos sodium salt EINECS 223-079-5 Ethanethiol, 2-amino-, dihydrogen phosphate, monosodium salt Ethanethiol, 2-amino-, dihydrogen phosphate(ester), monosodium salt Monosodium beta-aminoethyl thiophosphate NSC 87174 Sodium beta-aminoethyl thiophosphate Sodium hydrogen S-(2-aminoethyl) phosphorothioic acid Sodium hydrogen S-(2-aminoethyl)phosphorothioate Sodium hydrogen S-(2-aminoethyl)phosphorothioic acid Tsistafos Tsistafos (cystafos) WR 638 UNII-YC9U0409D3 CAS 3724-89-8
| CAS No. | 3724-89-8 |
| Molecular Formula | C2H7NO3PS |
| 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.
YC9U0409D3 3724-89-8 Cystaphos Phosphocysteamine sodium Ethanethiol, 2-amino-, dihydrogen phosphate (ester), monosodium salt Phosphorothioic acid, S-(2-aminoethyl) ester, monosodium salt Sodium hydrogen -S-(2-aminoethyl)thiophosphate S-(2-Aminoethyl) thiophosphate monosodium salt S-(2-Aminoethyl)thiophosphate monosodium salt Cistaphos Cystafos Cystaphos sodium salt EINECS 223-079-5 Ethanethiol, 2-amino-, dihydrogen phosphate, monosodium salt Ethanethiol, 2-amino-, dihydrogen phosphate(ester), monosodium salt Monosodium beta-aminoethyl thiophosphate NSC 87174 Sodium beta-aminoethyl thiophosphate Sodium hydrogen S-(2-aminoethyl) phosphorothioic acid Sodium hydrogen S-(2-aminoethyl)phosphorothioate Sodium hydrogen S-(2-aminoethyl)phosphorothioic acid Tsistafos Tsistafos (cystafos) WR 638 UNII-YC9U0409D3 (CAS 3724-89-8), molecular formula C2H7NO3PSNa and molecular weight 179.11 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a sulfone group, a phosphonate group, a carboxylic acid group, an ether linkage, YC9U0409D3 3724-89-8 Cystaphos Phosphocysteamine sodium Ethanethiol, 2-amino-, dihydrogen phosphate (ester), monosodium salt Phosphorothioic acid, S-(2-aminoethyl) ester, monosodium salt Sodium hydrogen -S-(2-aminoethyl)thiophosphate S-(2-Aminoethyl) thiophosphate monosodium salt S-(2-Aminoethyl)thiophosphate monosodium salt Cistaphos Cystafos Cystaphos sodium salt EINECS 223-079-5 Ethanethiol, 2-amino-, dihydrogen phosphate, monosodium salt Ethanethiol, 2-amino-, dihydrogen phosphate(ester), monosodium salt Monosodium beta-aminoethyl thiophosphate NSC 87174 Sodium beta-aminoethyl thiophosphate Sodium hydrogen S-(2-aminoethyl) phosphorothioic acid Sodium hydrogen S-(2-aminoethyl)phosphorothioate Sodium hydrogen S-(2-aminoethyl)phosphorothioic acid Tsistafos Tsistafos (cystafos) WR 638 UNII-YC9U0409D3 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 179.11 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), YC9U0409D3 3724-89-8 Cystaphos Phosphocysteamine sodium Ethanethiol, 2-amino-, dihydrogen phosphate (ester), monosodium salt Phosphorothioic acid, S-(2-aminoethyl) ester, monosodium salt Sodium hydrogen -S-(2-aminoethyl)thiophosphate S-(2-Aminoethyl) thiophosphate monosodium salt S-(2-Aminoethyl)thiophosphate monosodium salt Cistaphos Cystafos Cystaphos sodium salt EINECS 223-079-5 Ethanethiol, 2-amino-, dihydrogen phosphate, monosodium salt Ethanethiol, 2-amino-, dihydrogen phosphate(ester), monosodium salt Monosodium beta-aminoethyl thiophosphate NSC 87174 Sodium beta-aminoethyl thiophosphate Sodium hydrogen S-(2-aminoethyl) phosphorothioic acid Sodium hydrogen S-(2-aminoethyl)phosphorothioate Sodium hydrogen S-(2-aminoethyl)phosphorothioic acid Tsistafos Tsistafos (cystafos) WR 638 UNII-YC9U0409D3 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 | C2H7NO3PS Na |
| Molecular Weight | 179.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- CRT0044876 (CAS 6960-45-8)
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- 1,1,1-Trifluoro-N-(1-methyl-1,2,3,4-tetrahydroquinolin-7-yl)methanesulfonamide (CAS 304690-95-7)
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- 2-ethyloxetan-3-amine (CAS 2306270-14-2)
- Fas C- Terminal Tripeptide (CAS 189109-90-8)
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