High purity D-pyroglutamic acid CAS 4042-36-8

Name:D-Pyroglutamic acidSynonym:(R)-2-Pyrrolidone-5-carboxylic acidCAS No.:4042-36-8Content:99%minMolecular formula:C5H7NO3Molecular weight:129.11D-Pyroglutamic acid is white or off-white crystals or crystalline powder,dissolves in  water,alcohol,acetone,glacial acetic acid,very slightly soluble in acetic ether,practically

Featured Products

High Purity D-Pyroglutamic Acid CAS 4042-36-8
Name:D-Pyroglutamic acid
Synonym:
(R)-2-Pyrrolidone-5-carboxylic acid

CAS No.:4042-36-8
Content:99%min
Molecular formula:C5H7NO3
Molecular weight:129.11

D-Pyroglutamic acid is white or off-white crystals or crystalline powder,dissolves in  water,alcohol,acetone,glacial acetic acid,very slightly soluble in acetic ether,practically insoluble in ether.

Specification:

 
Specific rotation[α]20D+11°~+11.9°
TransmittanceNot less than 98%
ChlorideNot more than 0.02%
AmmoniumNot more than 0.02%
SulfateNot more than 0.02%
IronNot more than 10ppm
Heavy metalsNot more than 10ppm
ArsenicNot more than 1ppm
Loss on dryingNot more than 0.1%
Residue on ignitionNot more than 0.1%
Chemical name(R)-2-Pyrrolidone-5-carboxylic acid
Molecular formulaC5H7NO3
Molecular weight129.11
Assay98.5%~100.1%
Packaging : 25kg/cartonboard drum
Storage : Store in a well-closed container away from moisture   

High Purity D-Pyroglutamic Acid CAS 4042-36-8High Purity D-Pyroglutamic Acid CAS 4042-36-8High Purity D-Pyroglutamic Acid CAS 4042-36-8High Purity D-Pyroglutamic Acid CAS 4042-36-8


Frequently Asked Questions

Q1: May I get one sample before placing order?
Re: Yes, Sample are available. For normal products, samples are for free and you just need to bear the freight; 

For those high value products, you just need to freight and certain product cost. When we both cooperate for 

some times or when you are our VIP customer, free sample will be offered when you need.

Q2: Which payment is available for your company?
Re: T/T, L/C . You can choose the one which is convenient for you. 


Q3: How and when can I get my goods after payment?
Re: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, TNT etc.) or by air. Usually it will cost 3-5days that you can get the goods after delivery.For large quantity products,

shipping by see is worthwhile.It will cost days to weeks to come to your destination port, which depends on where the port is.

Q4: Is there any possible to use my appointed label or package?
Re: Yes. If needed, we'd like to use label or package according to your requirement. 

Q5: How can you guarantee the goods you offer is qualified? 
Re: We always believe honesty and responsibility are basis of one company, so whatever products we provide for you all are qualified. We will have goods tested and provide COA before delivery for sure.

Contact us

Please feel free to give your inquiry in the form below We will reply you in 24 hours