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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
8.51086
Oxyma Pure
≥99.0% (HPLC), for peptide synthesis, Novabiochem®
Synonym(s):
Oxyma Pure, Ethyl cyano(hydroxyimino)acetate
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
25 g | Estimated to ship TODAYfromSAINT LOUIS | $44.40 |
100 g | Estimated to ship TODAYfromSAINT LOUIS | $130.00 |
250 g | Estimated to ship onNovember 19, 2026fromSAINT LOUIS. | $232.00 |
500 g | Estimated to ship TODAYfromSAINT LOUIS | $408.00 |
1 kg | Estimated to ship onSeptember 16, 2026fromSAINT LOUIS | $709.00 |
5 kg | Estimated to ship onNovember 19, 2026fromSAINT LOUIS. | $3,070.00 |
About This Item
Product Name
Oxyma Pure, Novabiochem®
Quality Segment
product line
Novabiochem®
assay
≥99.0% (HPLC)
form
crystalline powder
reaction suitability
reaction type: Coupling Reactions
manufacturer/tradename
Novabiochem®
mp
130-132 °C
application(s)
peptide synthesis
storage temp.
2-8°C
InChI
1S/C5H6N2O3/c1-2-10-5(8)4(3-6)7-9/h9H,2H2,1H3/b7-4+
InChI key
LCFXLZAXGXOXAP-QPJJXVBHSA-N
General description
The generation of toxic hydrogen cyanide (HCN) from the reaction between Oxyma Pure and DIC has been observed. Fortunately, this side reaction can be eliminated by substituting DIC for the more hindered t-butylethylcarbodiimide.
Associated Protocols and Technical Articles
Guide to Selection of Coupling Reagents
Literature references:
[1] R. Subirós-Funosas, et al. (2009) Chem. Eur. J., 15, 9394
[2] J. Collins , et al. (2014) Org . Lett ., 16, 940.
[3] A. D. McFarland (2019) Org. Process Res. Dev., 23, 2099.
[4] S. R. Manne, et al (2022) Org. Process Res. Dev., 26, 2894.
Application
- Use in the synthesis of difficult peptides.
- As an acidic modifier to prevent aspartimide formation.
Features and Benefits
- Can be used in place of HOBt in carbodiimide-mediated coupling reactions without change of protocol
- It gives results comparable to HOAt in step-wise solid-phase synthesis
- Less epimerization than HOBt in fragment condensation reactions
Analysis Note
Appearance of substance (visual): crystalline powder
Assay (HPLC, area%): ≥ 99.0 % (a/a)
Identity (IR): passes test
Solubility (12,5 mmol in 25 ml DMF): clearly soluble
Legal Information
1 of 1
This Item | |||
|---|---|---|---|
| description Novabiochem® | description Novabiochem® | description Novabiochem® | description Novabiochem® |
| form crystalline powder | form powder | form powder | form powder |
| assay ≥99.0% (HPLC) | assay - | assay ≥99.0% (HPLC) | assay - |
| product line Novabiochem® | product line Novabiochem® | product line Novabiochem® | product line Novabiochem® |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. -10 to -25°C | storage temp. 2-8°C |
| mp 130-132 °C | mp 145-155 °C | mp - | mp 137-142 °C |
| Quality Level 300 | Quality Level 200 | Quality Level 300 | Quality Level 200 |
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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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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