If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
A9878
4-Aminobenzoic acid
≥99%, for peptide synthesis, ReagentPlus®
Synonym(s):
para-Aminobenzoic acid, PABA, Vitamin Bx, Vitamin H1
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| Pack Size | SKU | Availability | Price |
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About This Item
Product Name
4-Aminobenzoic acid, ReagentPlus®, ≥99%
biological source
synthetic (organic)
Quality Segment
product line
ReagentPlus®
assay
≥99%
form
powder
reaction suitability
reaction type: solution phase peptide synthesis
mp
187-189 °C (lit.)
solubility
ethanol: 50 mg/mL, clear, colorless to faintly yellow
density
1.374 g/mL at 25 °C (lit.)
application(s)
peptide synthesis
storage temp.
room temp
SMILES string
Nc1ccc(cc1)C(O)=O
InChI
1S/C7H7NO2/c8-6-3-1-5(2-4-6)7(9)10/h1-4H,8H2,(H,9,10)
InChI key
ALYNCZNDIQEVRV-UHFFFAOYSA-N
General description
Application
- As a building block in the synthesis of Polyamides
- As a substrate in folic acid production
- In the synthesis of Schiff base
- As an organic ligand in metal-organic framework (MOFs) synthesis
Legal Information
1 of 1
This Item | |||
|---|---|---|---|
| form powder | form solid | form - | form - |
| assay ≥99% | assay ≥99% | assay - | assay - |
| product line ReagentPlus® | product line - | product line - | product line - |
| storage temp. room temp | storage temp. - | storage temp. 2-8°C | storage temp. - |
| mp 187-189 °C (lit.) | mp 187-189 °C (lit.) | mp 187-189 °C (lit.) | mp 187-189 °C (lit.) |
| solubility ethanol: 50 mg/mL, clear, colorless to faintly yellow | solubility - | solubility - | solubility - |
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hcodes
pcodes
Hazard Classifications
Aquatic Chronic 3
Storage Class
11 - Combustible Solids
flash_point_f
339.8 °F - closed cup
flash_point_c
171 °C - closed cup
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| A9878-25G | 04061835517985 |
| A9878-5G | 04061835555697 |
| A9878-100G | 04061835555680 |
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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