Molekula
N-(Cyclopentyloxycarbonyl)succinimide (CP-OSu)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
N-(Cyclopentyloxycarbonyl)succinimide (CP-OSu) is a mixed carbonate reagent used in peptide synthesis for selective amine protection. It serves as an activated carbonate that transfers the cyclopentyloxycarbonyl group onto amines to form cyclopentyl carbamates. CAS: 128595-07-3, Molecular Formula: C10H13NO5, Molecular Weight: 227.21 g/mol, Storage: 2 to 8 °C, Signal Word: Warning. Molekula supplies N-(Cyclopentyloxycarbonyl)succinimide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
Specifications available on request — see Documents below or contact our sales team.
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 55128258 |
| CAS Number | 128595-07-3 |
| IUPAC Name | cyclopentyl (2,5-dioxopyrrolidin-1-yl) carbonate |
| Molecular Formula | C10H13NO5 |
| Molecular Weight | 227.21 |
| Exact Mass | 227.0794 |
| SMILES | C1CCC(C1)OC(=O)ON2C(=O)CCC2=O |
| InChIKey | MKHDXOXWZKDUKB-UHFFFAOYSA-N |
| InChI | InChI=1S/C10H13NO5/c12-8-5-6-9(13)11(8)16-10(14)15-7-3-1-2-4-7/h7H,1-6H2 |
| PubChem CID | 15927743 |
| REACH Code | Y113 |
| HTS Code | 29280050 |
| Tariff Code | 2928009090 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 1-{[(Cyclopentyloxy)carbonyl]oxy}pyrrolidine-2,5-dione
- Carbonic acid, cyclopentyl 2,5-dioxo-1-pyrrolidinyl ester
- CP-OSU [N-(Cyclopentyloxy carbonyloxy)succinimide]
- CP-OSU [N-(Cyclopentyloxy curbonyloxy)succinimide]
- cyclopentyl (2,5-dioxopyrrolidin-1-yl) carbonate
- Cyclopentyl N-Succinimidyl Carbonate
- CYCLOPENTYL SUCCINIMIDYL CARBONATE
- N-(Cyclopentyloxy curbonyloxy) Succinimide
- N-(Cyclopentyloxycarbonyloxy)succinimide
Frequently asked questions
What is N-(Cyclopentyloxycarbonyl)succinimide (CP-OSu) used for?
CP-OSu is an activated carbonate reagent that reacts with amines to install a cyclopentyloxycarbonyl group, forming cyclopentyl carbamates.
What is the chemical formula and molecular weight of CP-OSu?
The formula is C10H13NO5 with a molecular weight of 227.21 g/mol.
How should CP-OSu be stored?
CP-OSu should be stored at 2 to 8 °C to maintain stability and prevent degradation.
What grade of CP-OSu is available?
CP-OSu is available in high-purity grade suitable for research and synthetic applications.
Can Molekula supply CP-OSu in bulk?
Yes, Molekula can supply CP-OSu in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a CP-OSu order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.