A4534 Sigma

L-Aspartic acid

BioReagent, suitable for cell culture, suitable for insect cell culture

Synonym: (S)-(+)-Aminosuccinic acid, (S)-Aminobutanedioic acid

  • CAS Number 56-84-8

  • Linear Formula HO2CCH2CH(NH2)CO2H

  • Molecular Weight 133.10

  •  Beilstein Registry Number 1723530

  •  EC Number 200-291-6

  •  MDL number MFCD00002616

  •  PubChem Substance ID 24890873

  •  eCl@ss 32160406

  • Popular Documents:  FTIR (PDF)  



Related Categories Amino Acids & Vitamins, Asymmetric Synthesis, Cell Culture, Chemical Synthesis, Chiral Resolution Reagents,
product line   BioReagent
assay   ≥98% (TLC)
mp   >300 °C (dec.)(lit.)
suitability   suitable for cell culture
  suitable for insect cell culture
Gene Information   human ... CA1(759), CA2(760)
rat ... Grin2a(24409)


Biochem/physiol Actions

Principal neurotransmitter for fast synaptic excitation.

Price and Availability

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Safety & Documentation

Safety Information

Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis. These documents are located on the product detail page under Useful Links & Tools. Click on the following link to search for a Certificate of Analysis. Please click the following link to see the details on our Product Dating Information.
How do I get lot-specific information or a Certificate of Analysis?
A Certificate of Analysis is available by lot number and can be obtained through our Advanced Search Option:
How do I find price and availability?
There are several ways to find pricing and availability for our products.  Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers. 
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS. To access the shipping information for this material, use the link on the product detail page for the product, or search here. 
What can I use to solubilize L-Aspartic acid, Product A4534?
This product is soluble in water at a concentration of 5mg/mL. Sigma has tested this product in 0.5M hydrochloric acid at a concentration of 50mg/mL, yielding a clear, colorless to faint yellow solution.
The description of L-Aspartic acid, Product A4534, says that it is "cell culture tested". What does that mean for this product?
Growth studies are carried through two subculture generations at 0.133 mg/mL. Cells are counted and growth is plotted as a logarithmic function of time in culture. Seeding efficiencies, doubling time, and final cell densities are determined. During the testing period, cultures are examined microscopically for atypical morphology and evidence of cytotoxicity.
What is the shelf life of L-Aspartic acid, Product A4534?
There is no expiration date or recommended retest date for this product. We will guarantee the product for one year from the date of shipment. Please see the link for Product Dating and shipping. <rn:answer_xref style="TEXT-INDENT: 0in" title="Product Dating" answer_id="2830" contents="" target="_self" />
My question is not addressed here, how can I contact Technical Service for assistance?
Use the option to the right to "Ask a Question" by email of a Technical Service Scientist.
Do you have any solution stability information for Product A4534, L-Aspartic acid?
L-aspartic acid may be used in cell culture media from 0.00665 g/L up to 0.05 g/L.  Most cell culture media has a minimum shelf life of 1 year at 2-8°C.  A stock solution at 50 mg/mL should be stable at least 6 months at 2-8°C
  What kind of solution is the A5955 - Antibiotic Antimycotic Solution (100×), Stabilized product suspended in?
A5955 - Antibiotic Antimycotic Solution (100×), Stabilized is supsended in a sodium citrate buffer solution. Source: Israel production group
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