Chemical Properties:
Package: Fluorinated 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.Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer of L-Leucine Benzyl Ester p-Toluenesulfonate Salt (H-Leu-OBzl·TosOH) (CAS: 1738-77-8) with high quality. Ruifu Chemical supplys a series of amino acids and peptide reagents. We can provide worldwide delivery, small and bulk quantities available. Purchase H-Leu-OBzl·TosOH, Please contact: alvin@ruifuchem.com| Safety Statements | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. | ||
| WGK Germany | 3 | HS Code | 2922491990 |
Description:
Safety Information:
Package & Storage:
| Chemical Name | L-Leucine Benzyl Ester p-Toluenesulfonate Salt |
| Synonyms | H-Leu-OBzl·TosOH; L-Leu-OBzl·TosOH; H-Leu-OBzl p-Toluenesulfonate; L-Leucine Benzyl Ester 4-Toluenesulfonate Salt; (S)-Leucine Benzyl Ester Tosylate; Benzyl L-Leucinate p-Toluenesulfonate; Benzyl L-Leucinate Tosylate; L-Leucinebenzyl Ester Tosylate; Leucine Benzyl Ester 4-Toluenesulfonic Acid Salt |
| Stock Status | In Stock, Production Capacity 35 Tons per Month |
| CAS Number | 1738-77-8 |
| Molecular Formula | C13H19NO2.C7H8O3S |
| Molecular Weight | 393.50 g/mol |
| Melting Point | 155.0~160.0℃ |
| Solubility | Soluble in Methanol |
| Storage Temp. | Cool & Dry Place (2~8℃) |
| COA & MSDS | Available |
| Category | Amino Acids and Derivatives |
| 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 Crystalline Powder | Complies |
| Specific Rotation [α]20/D | +4.7° to +5.3° (C=2 in DMF) | +5.1° |
| Melting Point | 155.0~160.0℃ | 158.5~159.5℃ |
| Water (K.F.) | <0.50% | 0.25% |
| Loss on Drying | <0.50% (70℃, 2h) | 0.10% |
| Heavy Metals (Pb) | ≤20ppm | <20ppm |
| H-Leu-OBzl·TosOH Purity | >99.0% (HPLC) | 99.5% |
| Benzyl Alcohol (By TLC ) | Not Detected | Complies |
| L-Leucine (By TLC ) | Not Detected | Complies |
| Clarity of Solution | 0.3 gram in 2ml DMF Clear Solution | Complies |
| Infrared Spectrum | Conforms to Structure | Complies |
| Conclusion | The product has been tested & complies with the given specifications | |
Application:
L-Leucine Benzyl Ester p-Toluenesulfonate Salt (H-Leu-OBzl·TosOH) (CAS: 1738-77-8), is a leucine derivative, antitumor drug intermediates. Amino acids derivatives, used in peptide synthesis, organic synthesis intermediates, pharmaceutical intermediates, biochemical reagents, chemical reagents.