(S)-(+)-Pantolactone CAS 5405-40-3 Purity >99.0% (GC) Factory

Short Description:

Chemical Name: (S)-(+)-Pantolactone 

CAS: 5405-40-3

Purity: >99.0% (GC)

White to Pale Yellow Powder or Crystals

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401

E-Mail: alvin@ruifuchem.com

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Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer of (S)-(+)-Pantolactone (CAS: 5405-40-3) with high quality. Ruifu Chemical supplys a series of chiral building blocks. Ruifu can provide worldwide delivery, competitive price, small and bulk quantities available. Purchase (S)-(+)-Pantolactone, Please contact: alvin@ruifuchem.com

Chemical Properties:

Chemical Name (S)-(+)-Pantolactone 
Synonyms L-Pantolactone; L-(+)-Pantolactone; (S)-(+)-α-Hydroxy-β,β-Dimethyl-γ-Butyrolactone; (S)-(+)-β,β-Dimethyl-α-Hydroxy-γ-Butyrolactone, (S)-Dihydro-3-Hydroxy-4,4-Dimethyl-2(3H)-Furanone; (S)-(+)-4,5-Dihydro-3-Hydroxy-4,4-Dimethyl-2(3H)-Furanone; (S)-(+)-alpha-Hydroxy-beta,beta-Dimethyl-gamma-Butyrolactone; (S)-3-Hydroxy-4,4-Dimethyldihydrofuran-2(3H)-one; L-(+)-Pantoyl Lactone; L-Pantoyl Lactone
Stock Status In Stock, Mass Production 
CAS Number 5405-40-3
Molecular Formula C6H10O3
Molecular Weight 130.14 g/mol
Melting Point 90.0 to 94.0℃ 
Boiling Point 120.0~122.0℃/15 mm Hg(lit.) 
Sensitive Hygroscopic. Moisture Sensitive, Heat Sensitive 
Water Solubility  Soluble in Water 
Storage Temp.  Cool & Dry Place (2~8℃) 
COA & MSDS Available
Category   Chiral Building Blocks 
Brand Ruifu Chemical


Items Inspection Standards Results
Appearance White to Pale Yellow Powder or Crystals Complies      
Purity / Analysis Method  >99.0% (GC)    99.21%
Specific Rotation [α]20/D +45.0° to +55.0° (C=0.5 in H2O)
Melting Point 90.0 to 94.0℃ 90.2~90.6℃
Loss on Drying <0.50% 0.33% 
Heavy Metals (Pb) ≤120ppm <20ppm
Infrared Spectrum Consistent with Structure Complies      
1 H NMR Spectrum  Consistent with Structure Complies      
Conclusion The product has been tested & complies with the specifications


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. 


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


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. 

5405-40-3 - Risk and Safety:

Hazard Symbols Xi - Irritant
Risk Codes 41 - Risk of serious damage to eyes
Safety Description
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S39 - Wear eye / face protection.
WGK Germany 3
HS Code 2932209090


(S)-(+)-Pantolactone (CAS: 5405-40-3) is used as Pharmaceutical material and intermediate. It is used as an Intermediate in organic syntheses.
(S)-(+)-Pantolactone is a versatile cyclic ester reactant used in the preparation of tunable ligands carbohydrate-derived diarylphosphinites for asymetric catalysis hydrovinylation of styrene derivatives.

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