Chemical Properties:
Package: Bottle, Aluminium foil bag, 25kg/Cardboard Drum, or according to customer's requirement. Storage Condition: Store in sealed containers at cool and dry (2~8℃) warehouse away from incompatible substances. Protect from light and moisture. Shipping: Deliver to worldwide by FedEx / DHL Express. Provide fast and reliable delivery. Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer of Boc-S-tert-Butylmercapto-L-Cysteine (Boc-Cys(StBu)-OH) (CAS: 30044-61-2) with high quality. Ruifu Chemical supplys a series of amino acids. We can provide worldwide delivery, competitive price, small and bulk quantities available. Purchase Boc-Cys(StBu)-OH, Please contact: alvin@ruifuchem.comDescription:
Package/Storage/Shipping:
| Chemical Name | Boc-S-tert-Butylmercapto-L-Cysteine |
| Synonyms | Boc-Cys(StBu)-OH; N-(tert-Butoxycarbonyl)-S-tert-Butylmercapto-L-Cysteine; (R)-2-((tert-Butoxycarbonyl)amino)-3-(tert-Butyldisulfanyl)propanoic Acid |
| Stock Status | In Stock |
| CAS Number | 30044-61-2 |
| Molecular Formula | C12H23NO4S2 |
| Molecular Weight | 309.45 g/mol |
| Melting Point | 110.0~120.0℃ |
| Density | 1.181±0.06 g/cm3 |
| Storage Temp. | Cool & Dry Place (2~8℃) |
| COA & MSDS | Available |
| Brand | Ruifu Chemical |
Advantages:
How to Purchase? Please contact Dr. Alvin Huang: sales@ruifuchem.com or alvin@ruifuchem.com 15 Years Experience? We have more than 15 years of experience in the manufacture and export of a wide range of high quality pharmaceutical intermediates or fine chemicals. Main Markets? Sell to domestic market, North America, Europe, India, Korea, Japanese, Australia, etc. Advantages? Superior quality, affordable price, professional services and technical support, fast delivery. Quality Assurance? Strict quality control system. Professional equipment for analysis include NMR, LC-MS, GC, HPLC, ICP-MS, UV, IR, OR, K.F, ROI, LOD, MP, Clarity, Solubility, Microbial limit test, etc. Samples? Most products provide free samples for quality evaluation, shipping cost should be paid by customers. Factory Audit? Factory audit welcome. Please make an appointment in advance. MOQ? No MOQ. Small order is acceptable. Delivery Time? If within stock, three days delivery guaranteed. Transportation? By Express (FedEx, DHL), by Air, by Sea. Documents? After sales service: COA, MOA, ROS, MSDS, etc. can be provided. Custom Synthesis? Can provide custom synthesis services to best fit your research needs. Payment Terms? Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T (Telex Transfer), PayPal, Western Union, etc.FAQ:
Stable Supply: Maintain reasonable stock
Professional Service: One stop purchasing service
Technical Support: Technology solution available
Custom Synthesis Service: Ranged from grams to kilos
Fast Delivery: If within stock, three days delivery guaranteed
High Quality: Established a complete quality assurance system
Sufficient Capacity: Sufficient facilities and technicians
OEM Package: Custom package and label available
Specifications:
| Items | Inspection Standards | Results |
| Appearance | White to Off-White Powder | Complies |
| Specific Rotation [α]20/D | -153.0°±3.0° (C=2 in MeOH) | -153.8° |
| Melting Point | 110.0~120.0℃ | 117.0~119.0℃ |
| Loss on Drying | <0.50% | 0.34% |
| Purity / Analysis Method | >99.0% (HPLC) | 99.32% |
| Infrared Spectrum | Conforms to Structure | Complies |
| NMR Spectrum | Conforms to Structure | Complies |
| Conclusion | The product has been tested & complies with the given specifications | |
Application:
Boc-S-tert-Butylmercapto-L-Cysteine (Boc-Cys(StBu)-OH) (CAS: 30044-61-2), Boc-amino acids, used in peptide synthesis, reaction type: Boc solid-phase peptide synthesis. StBu is cleaved by mercaptans, phosphines and other reducing agents. As it is stable towards TFA it is suitable for Boc-SPPS. Boc-Cys(StBu)-OH also can be used as an organic synthesis intermediate, pharmaceutical intermediate, biochemical reagent or chemical reagent.Safety Information:
Safety Statements 22-24/25 WGK Germany 3 HS Code 2922491990