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Home » Product Directory » Chemicals » Biochemical » D-Proline; D-Leucine; D-Valine

D-Proline; D-Leucine; D-Valine

D-Proline; D-Leucine; D-Valine
D-Proline; D-Leucine; D-Valine
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Product Description

1. D-Proline
CAS No.: 344-25-2
Synonyms: (R)-Pyrrolidine-2-carboxylic acid
Molecular Formula C5H9NO2

Specification:
Assay: 98.0% to 101.0%
Specific Rotation 20/D: +83.5 to +86.5 Degree (C= H2O)
Chloride (Cl): Not more than 0.10%
Heavy Metals (Pb): Not more than 10 PPM
Loss on Drying: Not more than 0.50%
Residue on ignition: Not more than 0.10%

2. D-Valine
Product Name: D-ValineSynonyms: (R)-a-aminoisovaleric acidMolecular Formula: C5H11NO2CAS #: 640-68-6
Test Items Standard
Appearance White powder
Assay 98.0% to 101.0%
Specific Rotation [a]20/D -27.6 to -29.0 Degree (C=8 in 6N HCl)
Chloride (Cl) Not more than 0.10%
Heavy Metals (Pb) Not more than 10 PPM
Loss on Drying Not more than 0.20%
Residue on Ignition (Sulfated) Not more than 0.20%

3. D-Leucine
Product Name: D-Leucine
Synonyms: (R)-2-amino-4-methylpentanoic acid
Molecular Formula: C6H13NO2
CAS #: 328-38-1
Test Items Standard
Appearance White powder
Assay 99.0% to 100.5%
Specific Rotation [a]20/D -14.9 to -16.0 Degree (C=4 in 6N HCl)
Chloride (Cl) Not more than 0.020%
Heavy Metals (Pb) Not more than 10 PPM
Test Items Standard
Residue on ignition Not more than 0.10%

   
Unit Price:  Negotiable
Shipment Terms:  CFR
Payment Terms:  T/T
Minimum Order:  1 Tons
Price Valid Time:  From Jan 02,2012 To Jan 15,2013
Company: Mutual Fine Chemical Co., Ltd.

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