D-Proline Powder (CAS 344-25-2)

About D-Proline Powder 

D-Proline Powder , also listed as H-D-Pro-OH or D-(+)-Proline, is the (R)-enantiomer of the amino acid proline. Its IUPAC name is (2R)-pyrrolidine-2-carboxylic acid. L-Proline  is the form cells build into proteins. D-Proline Powder is used mainly as a chiral building block: its fixed (R) configuration lets chemists introduce defined stereochemistry into a target molecule. That is why pharmaceutical, peptide and fine-chemical manufacturers specify it by enantiomeric purity as well as assay.

D-Proline Specifications

Parameter	Specification
Product name	D-Proline Powder
Synonyms	H-D-Pro-OH; D-(+)-Proline; (R)-Pyrrolidine-2-carboxylic acid
CAS number	344-25-2
Molecular formula	C5H9NO2
Molecular weight	115.13 g/mol
IUPAC name	(2R)-pyrrolidine-2-carboxylic acid
Physical form	Powder
Assay	As per batch certificate of analysis
Specific rotation	As per batch certificate of analysis
Loss on drying	As per batch certificate of analysis

Applications of D-Proline Powder 

• Pharmaceutical intermediates: a chiral intermediate in the synthesis of chiral drug substances and peptide-based compounds.
• Peptide synthesis: a D-amino acid building block, including for solution-phase peptide synthesis.
• Protected derivatives: a starting material for derivatives such as Boc-D-Proline Powder and Fmoc-D-Proline.
• Asymmetric synthesis: used as a chiral reagent, resolving agent and organocatalytic in enantioselective reactions.
• Research and QC laboratories: method development, chiral-purity testing and academic research.

Bulk D-Proline Powder  Supply from India

Bioprecis supplies D-Proline Powder  for R&D, pilot batches and ongoing production. Bulk orders start at 25 kg. Share your quantity, grade requirement and delivery location, and our team will reply with a quotation, lead time and batch documentation.

Quality Documentation

A batch certificate of analysis and Safety Data Sheet (SDS) are available on request. Our technical team can help with specification questions during qualification.

Storage and Handling

Store D-Proline Powder  in its original, tightly closed container in a cool, dry place, protected from light and moisture. Refer to the SDS for full handling guidance.

Frequently Asked Questions

What is the CAS number of D-Proline Powder ?

The CAS number of D-Proline Powder is 344-25-2. Its molecular formula is C5H9NO2 and its molecular weight is 115.13 g/mol.

Is D-Proline Powder  R or S?

D-Proline Powder has the R configuration. Its IUPAC name is (2R)-pyrrolidine-2-carboxylic acid; L-Proline is the S form.

What is the difference between D-Proline Powder  and L-Proline?

They are mirror-image enantiomers with the same formula. L-Proline is the form found in proteins. D-Proline Powder  is mainly used as a chiral building block in pharmaceutical and peptide synthesis.

What is D-Proline Powder used for?

It is used as a chiral intermediate for pharmaceuticals, a building block in peptide synthesis, a starting material for protected derivatives, and a reagent or catalyst in asymmetric synthesis.

What is the minimum order quantity for bulk D-Proline Powder ?

Bulk orders start at 25 kg. For smaller quantities, order online on this page.

Do you provide a CoA and SDS?

Yes. A batch certificate of analysis and the SDS are available on request.

How do I get a bulk price for D-Proline Powder ?

Contact us on WhatsApp or through the Get a Quote form with your quantity, grade and delivery location. Bulk pricing depends on volume. Need D-Proline Powder for a pilot batch or ongoing production? Share your quantity and grade, and we’ll send a quotation with batch documentation.