Di-tert-butyl Dicarbonate (Boc Anhydride)

Di-tert-butyl Dicarbonate (Boc anhydride, Boc2O, CAS 24424-99-5), min. 99%, supplied wholesale by Zyntex. Standard reagent for Boc protection of amines in API, peptide and fine chemical synthesis. CoA and SDS.

SKU: 34619-03-9 Category: Tags: ,
Description
Di-tert-butyl Dicarbonate (Boc anhydride, Boc2O, CAS 24424-99-5) is the standard reagent for protecting amines with the tert-butoxycarbonyl (Boc) group in pharmaceutical and peptide synthesis. Zyntex is a wholesale supplier and distributor of Di-tert-butyl Dicarbonate with min. 99% purity, with a CoA as well as an SDS for every lot.

Di-tert-butyl Dicarbonate Product Overview

Di-tert-butyl dicarbonate (C10H18O5) is a colorless solid or liquid that melts at about 22–24°C, so it may appear in either state. It also reacts with amines under mild conditions, releasing carbon dioxide and tert-butanol, and hydrolyzes slowly in moist air.

Chemists use it to attach the Boc protecting group to amines, which keeps them unreactive during later synthesis steps; mild acids remove the group again. This makes it one of the most widely used reagents in API, peptide and fine chemical synthesis. Similarly, it serves to make carbamates and as an activating agent.

Because it is toxic if inhaled and slowly builds pressure in closed containers, it ships cooled and requires storage refrigerated. Related reagents in our range also include 4-Nitrophenyl chloroformate and Methanesulfonyl Chloride.

Key Applications of Di-tert-butyl Dicarbonate

Typical uses include, for example:

💊 API Synthesis

Boc protection of amines.

🧬 Peptide Synthesis

Protecting group for amino acids.

🧪 Fine Chemicals

Reagent for carbamates.

🔬 Research

Standard laboratory reagent.

Di-tert-butyl Dicarbonate Technical Specifications

ParameterStandard Value
Product NameDi-tert-butyl Dicarbonate (Boc Anhydride)
CAS Number24424-99-5
Molecular Formula / WeightC10H18O5 / 218.25 g/mol
Assay / PurityMin. 99.0%
Melting PointApprox. 22 – 24 °C
DocumentsCoA as well as SDS with every lot

⚠️ Safety & Handling: Fatal if inhaled, flammable, and may cause skin sensitization and serious eye irritation. Handle only in a fume hood, and also wear gloves, eye protection and respiratory protection. Store refrigerated in tightly closed, vented containers, because it slowly releases gas. Always consult the Safety Data Sheet (SDS), because it contains the full classification and handling instructions.

Frequently Asked Questions

Is this product the same as Boc anhydride?

Yes. Di-tert-butyl dicarbonate, Boc anhydride as well as Boc2O are names for the same reagent.

Why does Boc2O need refrigerated storage?

Because it melts near room temperature and slowly decomposes with gas release, cool storage keeps it stable.

How can I get a price and documents?

Prices depend on quantity, packaging and destination, so please contact us with your required volume. We then send a quotation together with the CoA and SDS.