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
21860
CDI
≥97.0% (T), for peptide synthesis
Synonym(s):
1,1′-Carbonyldiimidazole
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
5 g | Available to ship TODAYfromMILWAUKEE | $38.60 |
25 g | Available to ship TODAYfromMILWAUKEE | $125.00 |
100 g | Available to ship TODAYfromMILWAUKEE | $286.00 |
About This Item
Product Name
CDI, ≥97.0% (T)
Quality Segment
assay
≥97.0% (T)
form
solid
reaction suitability
reaction type: Carbonylations
greener alternative product characteristics
Designing Safer Chemicals
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sustainability
Greener Alternative Product
mp
115-122 °C, 117-122 °C (lit.)
application(s)
peptide synthesis
greener alternative category
storage temp.
2-8°C
SMILES string
O=C(n1ccnc1)n2ccnc2
InChI
1S/C7H6N4O/c12-7(10-3-1-8-5-10)11-4-2-9-6-11/h1-6H
InChI key
PFKFTWBEEFSNDU-UHFFFAOYSA-N
General description
Application
- In the activation of malonic acid derivatives to prepare carbonyl imidazoles by mild decarboxylation.
- In the activation of cellulose membranes for the development of immunosensors.
- In the synthesis of substituted 1,3-oxazolo[4,5-d] pyridazinones.
- As a reagent for the conversion of various hydroxamic acids to isocyanates by Lossen rearrangement.
- In the synthesis of 1,3,4-oxadiazole derivatives , and peptide thioesters in water.[1]
- As an acylation agent for the synthesis of carbamates.
Other Notes
1 of 1
This Item | |||
|---|---|---|---|
| form solid | form solid | form powder or solid (Crystals) | form solid |
| assay ≥97.0% (T) | assay ≥90.0% (proton, NMR) | assay ≥97% | assay - |
| storage temp. 2-8°C | storage temp. - | storage temp. room temp | storage temp. −20°C |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 100 |
| mp 115-122 °C, 117-122 °C (lit.) | mp 117-122 °C (lit.) | mp - | mp 199-204 °C |
| sustainability Greener Alternative Product | sustainability Greener Alternative Product | sustainability - | sustainability - |
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B
Storage Class
8A - Combustible corrosive hazardous materials
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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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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