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
100536
4-Aminobenzoic acid
99%, for peptide synthesis, ReagentPlus®
Synonym(s):
PABA, Vitamin Bx, Vitamin H1
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 50 g | Available to ship TODAYfromMILWAUKEE | $36.50 | |
| 250 g | Available to ship TODAYfromMILWAUKEE | $59.00 | |
| 1 kg | Available to ship TODAYfromMILWAUKEE | $173.00 | |
| 5 kg | Usually ships in 5 business days. (Orders outside of US, please allow an additional 1-2 weeks for delivery) | $573.00 |
About This Item
$36.50
Available to ship TODAYDetails
Product Name
4-Aminobenzoic acid, ReagentPlus®, 99%
Quality Segment
product line
ReagentPlus®
assay
99%
form
solid
reaction suitability
reaction type: solution phase peptide synthesis
mp
187-189 °C (lit.)
solubility
95% ethanol: soluble 5%, clear to slightly hazy, colorless to yellow
density
1.374 g/mL at 25 °C (lit.)
application(s)
peptide synthesis
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
- Covalent modification of glassy carbon electrode.
- Synthesis of 1,4-(2-chlorobenzylidene)aminobenzoic acid (Schiff base).[1]
- Spectrophotometric determination of the trace amounts of dopamine, methyldopa and levodopa.
- Synthesis of 1:1 proton-transfer compound with 5-sulfosalicylic acid.
Legal Information
1 of 1
This Item | |||
|---|---|---|---|
| form solid | form powder | form solid | form - |
| assay 99% | assay ≥99% | assay ≥99% | assay - |
| product line ReagentPlus® | product line ReagentPlus® | product line - | product line - |
| mp 187-189 °C (lit.) | mp 187-189 °C (lit.) | mp 187-189 °C (lit.) | mp 187-189 °C (lit.) |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 300 |
| solubility 95% ethanol: soluble 5%, clear to slightly hazy, colorless to yellow | solubility ethanol: 50 mg/mL, clear, colorless to faintly yellow | 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 |
|---|---|
| 100536-50G | 04061838251749 |
| 100536-5KG | 04061838663764 |
| 100536-250G | 04061838251732 |
| 100536-1KG | 04061835554041 |
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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?
1 answer-
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
Helpful?
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Hallo, wie lange ist die Haltbarkeit des Produkts? auf dem Gebinde und dem Zertifikat gibt es dazu keine Angaben.
1 answer-
This product is not assigned an expiration date or recommended retest date. Customers should routinely inspect products with no expiration date or recommended retest date to ensure they perform as expected. These products are also subject to a one-year warranty from the date of shipment.
For more information, you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services.
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