Fmoc-Cl CAS 28920-43-6 9-Fluorenylmethyl Chloroformate Purity >99.0% (HPLC) Factory Protecting Reagent
Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer of 9-Fluorenylmethyl Chloroformate (Fmoc-Cl; Fmoc Chloride) (CAS: 28920-43-6) with high quality. Ruifu Chemical supplys a series of protecting reagents and coupling reagents. We can provide worldwide delivery, competitive price, small and bulk quantities available. Purchase Fmoc-Cl, Please contact: alvin@ruifuchem.com
Chemical Name | 9-Fluorenylmethyl Chloroformate |
Synonyms | Fmoc-Cl; Fmoc Chloride; (9-Fluorenylmethyl) Chloroformate; Chloroformic Acid 9-Fluorenylmethyl Ester; (9H-Fluoren-9-ylmethoxy)carbonyl Chloride; 9H-Fluoren-9-ylmethyl Chloroformate |
Stock Status | In Stock, Production Capacity to Tons per Month |
CAS Number | 28920-43-6 |
Molecular Formula | C15H11ClO2 |
Molecular Weight | 258.70 g/mol |
Melting Point | 60.0~65.0℃(lit.) |
Density | 1.288 g/cm3 |
Sensitive | Moisture Sensitive, Heat Sensitive |
Solubility | Soluble in Acetone |
Storage Temp. | Cool & Dry Place (2~8℃) |
COA & MSDS | Available |
Category | Protecting Reagents |
Brand | Ruifu Chemical |
Items | Inspection Standards | Results |
Appearance | White to Light Yellow Crystalline Powder | Complies |
Melting Point | 60.0~65.0℃ | 62.6~63.0℃ |
Loss on Drying | <0.50% | 0.19% |
Clarity of the Solution | 0.5 gram in 10ml Acetone Clear Solution | Complies |
Purity / Analysis Method | >99.0% (HPLC) | 99.4% |
IR Spectrum | In Accordance With the Standard | Complies |
Mass Spectrum | In Accordance With the Standard | Complies |
NMR Spectrum | In Accordance With the Standard | Complies |
Conclusion | The product has been tested & complies with the specifications |
Chromatographic Condition
Column: Diamonsil C18 (250*4.6mm 5μm)
Mobile phase: Acetonitrile: water (PH=3.0 trifluoroacetic acid aqueous solution)=80:20
Detection wavelength: 254nm
Column temperature: 25℃
Flow rate: 1.0ml/min
Theoretical plate number: According to the main peak of Fmoc-Cl calculation should not be less than 2000
Determination method
Acetonitrile solution containing Fmoc-Cl 20μg per 1ml was prepared as the test solution. The test solution 10μl was injected into the chromatograph, and the chromatogram was recorded until the retention time of principal component peak was 2 times
Results: The content of Fmoc-Cl was no less than 99.0% by area normalization method
Melting point: WRS-2A melting point instrument: heating rate: 1.5/min. The melting point of this product should be 60.0~63.0℃
Loss on drying: Take this product at 40℃ vacuum drying to constant weight, weight reduction should not exceed 0.5%
Reinspection period: one year
Package: Bottle, Aluminium foil bag, 25kg/Cardboard Drum, or according to customer's requirement.
Attention: Long-term storage at room temperature will slowly decompose. Easy to absorb moisture and decompose in water.
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.
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.
Risk Codes
R34 - Causes burns
R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed.
Safety Description
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection.
S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S27 - Take off immediately all contaminated clothing.
UN IDs UN 3261 8/PG 2
WGK Germany 3
RTECS LQ6250000
FLUKA BRAND F CODES 10-21
TSCA No
Hazard Class 6.1
Packing Group II
9-Fluorenylmethyl Chloroformate (Fmoc-Cl; Fmoc Chloride) (CAS: 28920-43-6) is mainly used for solid-phase polypeptide synthesis, can be used as N-protecting reagent for oligonucleotide and peptide syntheses. Fmoc-Cl can act as reagent for the introduction of Fmoc-amino-protecting group, which is stable towards acids but is readily cleaved under mildly basic non-hydrolytic conditions.
Used for organic synthesis (amino acid protecting group). Amino acid derivative reagent, fluorescence detection, can effectively detect the reaction products by HPLC, but will produce dipeptide and tripeptide impurities, and the reagent is not easy to preserve.
Fmoc-Cl is used to prepare N-Fmoc amino acids in solid-phase polypeptide synthesis. Amino protective reagents for the synthesis of bicyclic proline analogs; Amino acid derivative reagents, which can be used for HPLC and capillary electrophoresis analysis, N-protection in polypeptides and oligonucleotide synthesis
Fmoc-Cl is a protective reagent for primary and secondary amines and is sensitive to bases. It is usually used for the synthesis of polypeptides or derivatization before amino and amino acid HPLC analysis and fluorescence detection.
Safety: A poison. Mutation data reported. A corrosive. When heated to decomposition it emits toxic vapors of Cl-.
Long-term storage at room temperature will slowly decompose. Easy to absorb moisture and decompose in water.
Soluble in organic solvents such as CH2Cl2, THF and dioxane. It can react with alcohol, ammonia or amine, or water.