(S)-1-(3-Ethoxy-4-Methoxyphenyl)-2-(Methylsulfonyl)ethylamine N-Acetyl-L-Leucine Salt CAS 608141-43-1 Purity ≥99.0% (HPLC) e.e ≥99.0% Apremilast Intermediate

Short Description:

Chemical Name: (S)-1-(3-Ethoxy-4-Methoxyphenyl)-2-(Methylsulfonyl)ethylamine N-Acetyl-L-Leucine Salt

CAS: 608141-43-1

Purity: ≥99.0% (HPLC)

Enantiomeric Excess (e.e): ≥99.0% 

Appearance: White to Off-White Solid

Intermediate of Apremilast (CAS: 608141-41-9) 

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401

E-Mail: alvin@ruifuchem.com


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608141-43-1 - Description:

Ruifu Chemical is the leading manufacturer of (S)-1-(3-Ethoxy-4-Methoxyphenyl)-2-(Methylsulfonyl)ethylamine N-Acetyl-L-Leucine Salt (CAS: 608141-43-1) with high quality, intermediate of Apremilast (CAS: 608141-41-9).
Apremilast is used for the treatment of active psoriatic arthritis (PsA) and moderate to severe chronic plaque psoriasis (PSOR). Ruifu Chemical can provide high-quality Apremilast intermediates and impurities.
Ruifu Chemical can provide worldwide delivery, competitive price, excellent service.
Purchase Apremilast intermediates and impurities or other products, please e-mail: alvin@ruifuchem.com 

Intermediates of Apremilast:

608141-43-1 - Chemical Properties:

Chemical Name (S)-1-(3-Ethoxy-4-Methoxyphenyl)-2-(Methylsulfonyl)ethylamine N-Acetyl-L-Leucine Salt
Synonyms (S)-2-(3-Ethoxy-4-Methoxyphenyl)-1-(Methylsulphonyl)-Eth-2-ylamine N-Acetyl-L-Leucine Salt; (S)-1-(3-Ethoxy-4-Methoxyphenyl)-2-(Methylsulfonyl)ethanamine (S)-2-Acetamido-4-Methylpentanoate; N-Acetyl-L-leucine Compound with (alphaS)-3-Ethoxy-4-Methoxy-alpha-[(Methylsulfonyl)methyl]benzenemethanamine; Apremilast Impurity 1
Stock Status In Stock 
CAS Number 608141-43-1
Molecular Formula C12H19NO4S.C8H15NO3
Molecular Weight 446.56 g/mol
Storage Temperature Store at 2-8℃ Refrigerator, Sealed Storage, Away From Moisture
Shipping Conditions Ambient  
Certificate of Analysis  Available
Origin of Product    Shanghai, China
Product Categories
Apremilast Intermediate  
Brand Ruifu Chemical

608141-43-1 - Specifications:

Items Specifications  Results
Appearance White to Off-White Solid   Conforms  
Purity / Analysis Method ≥99.0% (HPLC)   99.99%
Enantiomeric Excess (e.e) ≥99.0%  100.00%
Infrared Spectrum Conforms to Structure   Conforms 
1H NMR Spectrum Conforms to Structure   Conforms   
Conclusion The product has been tested and complies with the given specifications
Application Intermediate of Apremilast (CAS: 608141-41-9) 

608141-43-1 - Package/Storage/Shipping:

Package: Fluorinated bottle, Aluminium foil bag, 25kg/cardboard drum, or according to customer's requirement.
Storage Condition: Keep the container tightly closed. Store in a cool, dry (2~8℃) and well-ventilated warehouse away from incompatible substances. Keep away from sunshine; avoid fire and heat sources; avoid moisture.
Shipping: Deliver to worldwide by air, by FedEx / DHL Express. Provide fast and reliable delivery. 

608141-43-1 - Advantages:

Sufficient Capacity: Sufficient facilities and technicians

Professional Service: One stop purchasing service

OEM Package: Custom package and label available

Fast Delivery: If within stock, three days delivery guaranteed

Stable Supply: Maintain reasonable stock    

Technical Support: Technology solution available

Custom Synthesis Service: Ranged from grams to kilos

High Quality: Established a complete quality assurance system

608141-43-1 - FAQ:

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 AssuranceStrict 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.

SamplesMost products provide free samples for quality evaluation, shipping cost should be paid by customers.

Factory AuditFactory audit welcome. Please make an appointment in advance.

MOQ? No MOQ. Small order is acceptable.

Delivery Time? If within stock, three days delivery guaranteed.

TransportationBy Express (FedEx, DHL), by Air, by Sea.

Documents? After sales service: COA, MOA, ROS, MSDS, etc. can be provided.

Custom SynthesisCan provide custom synthesis services to best fit your research needs.

Payment TermsProforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T (Telex Transfer), PayPal, Western Union, etc. 

608141-43-1 - Application:

(S)-1-(3-Ethoxy-4-Methoxyphenyl)-2-(Methylsulfonyl)ethylamine N-Acetyl-L-Leucine Salt (CAS: 608141-43-1), intermediate of Apremilast (CAS: 608141-41-9). Apremilast (Otezla) was approved by the FDA on March 21, 2014 for the treatment of adult patients with active psoriatic arthritis. Apremilast is a member of a new class of oral small molecule inhibitors of the phosphosphodiesterase 4 (PDE4) enzyme. When PDE4 is inhibited in immune cells, it results in elevation of intracellular cyclic adenosine monophosphate (cAMP) levels, which can regulate inflammatory mediators. The current clinical data indicate that apremilast is an effective and well tolerated option for the management of psoriasis and PsA in adults.

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