Maximum quantity allowed is 999
请选择数量
CAS RN: 255825-38-8 | 产品编码: T3569
N,N,N',N'-Tetramethyl-S-(1-oxido-2-pyridyl)thiouronium Tetrafluoroborate
×
![]()
×
技术规格
| Appearance | White to Light yellow powder to crystal |
| Purity(HPLC) | min. 98.0 area% |
| Purity(with Total Nitrogen) | min. 96.0 % |
| NMR | confirm to structure |
物性（参考值）
| 熔点 | 108 °C(dec.) |
GHS
| 象形图 |
|
| 信号词 | Warning |
| 危险性说明 | H302 : Harmful if swallowed. H315 : Causes skin irritation. H319 : Causes serious eye irritation. |
| 防范说明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P270 : Do not eat, drink or smoke when using this product. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ eye protection/ face protection. P302 + P352 : IF ON SKIN: Wash with plenty of water. P337 + P313 : If eye irritation persists: Get medical advice/ attention. P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P362 + P364 : Take off contaminated clothing and wash it before reuse. P332 + P313 : If skin irritation occurs: Get medical advice/ attention. P301 + P312 + P330 : IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. Rinse mouth. |
相关法规
运输信息
| HS编码* | 2933.39-000 |
应用
Condensing Agent
Experimental procedure:
A solution of the N-protected amino acid (1 mmol), the amino acid ester hydrochloride (1 mmol), triethylamine (0.28 mL, 2 mmol), and TOTT (1 mmol) in MeCN (10 mL) is stirred at room temperature until disappearance of the free esterified amino acid. Saturated NaCl is added, and the mixture is extracted with AcOEt. The organic layers are washed with 2 mol/L HCl, saturated NaHCO3, and water. The organics are dried (Na2SO4), filtered, and evaporated affording the corresponding peptides.
A solution of the N-protected amino acid (1 mmol), the amino acid ester hydrochloride (1 mmol), triethylamine (0.28 mL, 2 mmol), and TOTT (1 mmol) in MeCN (10 mL) is stirred at room temperature until disappearance of the free esterified amino acid. Saturated NaCl is added, and the mixture is extracted with AcOEt. The organic layers are washed with 2 mol/L HCl, saturated NaHCO3, and water. The organics are dried (Na2SO4), filtered, and evaporated affording the corresponding peptides.
Reference
- 2-Mercaptopyridone 1-Oxide-Based Uronium Salts:? New Peptide Coupling Reagents
参考文献