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
405191
2,5-Thiophenedicarboxylic acid
99%
Synonym(s):
2,5-Dicarboxythiophene, Thiophene-2,5-dicarboxylic acid
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 5 g | Check Cart for Availability | $29.10 | |
| 25 g | Check Cart for Availability | $40.80 |
About This Item
$29.10
Quality Level
assay
99%
mp
>300 °C (lit.)
functional group
carboxylic acid
SMILES string
OC(=O)c1ccc(s1)C(O)=O
InChI
1S/C6H4O4S/c7-5(8)3-1-2-4(11-3)6(9)10/h1-2H,(H,7,8)(H,9,10)
InChI key
YCGAZNXXGKTASZ-UHFFFAOYSA-N
General description
Application
It may be used in the synthesis of the following:
- new cobalt(II) thiophenedicarboxylate coordination polymer[2]
- novel mesogenic thiophene based supramolecular liquid crystals
- two novel coordination polymers with the formula {[Ln2(2,5-tdc)3(dmso)2]H2O}n (Ln = Tb(III) and Dy(III)), (2,5-tdc2 = 2,5-thiophenedicarboxylate and dmso = dimethylsulfoxide)
1 of 1
This Item | |||
|---|---|---|---|
| assay 99% | assay 98% | assay 99% | assay ≥95.0% (HPLC) |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| mp >300 °C (lit.) | mp 147-149 °C (lit.) | mp 136-141 °C (lit.) | mp 158-162 °C |
| functional group carboxylic acid | functional group carboxylic acid | functional group carboxylic acid | functional group carboxylic acid |
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
wgk
WGK 3
ppe
dust mask type N95 (US), Eyeshields, Gloves
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 405191-5G | 04061831987225 |
| 405191-25G | 04061831987201 |
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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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