Pyridinium Chlorochromate TCI P0930

Chemical Identity

CAS No.: 26299-14-9
PubChem: SID 87575047
Purity: >98.0%(T)

Rp 875.700,00

~~Rp 612.150,00~~ Rp 875.700,00

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TCI P0930 Pyridinium Chlorochromate, better known as PCC or the Corey reagent, is a chromium(VI) complex salt formed from pyridine, hydrochloric acid, and chromium trioxide. It is one of the classic oxidizing reagents in organic synthesis. It converts primary alcohols into aldehydes and secondary alcohols into ketones. Synthetic chemists rely on it heavily when the target is an aldehyde that must not be oxidized further to a carboxylic acid, a selective step that is often hard to achieve with other oxidants.

PCC is valued because it is a relatively mild and selective oxidant. Oxidations are usually carried out in anhydrous dichloromethane, and without water present the aldehyde product does not readily convert into a carboxylic acid. This sets PCC apart from stronger aqueous chromium oxidants, which tend to over-oxidize primary alcohols. PCC is also easy to weigh and dispense because it is a stable, yellow-orange solid. The reagent is somewhat acidic, so reactions with acid-sensitive substrates are often buffered with additives such as sodium acetate or run on a solid support. This lets chemists adapt the method to a wider range of substrates.

In Indonesia, PCC is widely used in organic chemistry laboratories at universities. It appears in advanced synthesis practicals, where students learn controlled alcohol oxidation, and in research on synthesizing target compounds. Research groups working on multistep synthesis use it whenever a dependable conversion of an alcohol to an aldehyde or ketone is needed. The TCI brand gives laboratories a familiar, consistent source of this reagent for both teaching and research.

Advantages (TCI brochure)

Oxidizes primary alcohols to aldehydes without overreaction
Part of the Sarett-Collins oxidation family of chromium reagents

TCI brochures (PDF)

Oxidizing Agents 2025-06-11 · p. 2
Transition Metal Catalysts 2026-04-10 · p. 6

Related TCI products

Oxidation of primary alcohols to aldehydes: under anhydrous conditions in dichloromethane, PCC stops at the aldehyde stage instead of continuing on to the carboxylic acid.
Oxidation of secondary alcohols to ketones: PCC reliably converts secondary alcohols into the matching ketones, which makes it a standard tool in routine synthetic transformations.
Multistep organic synthesis research: its mild, selective character lets researchers carry out a key oxidation step without damaging sensitive intermediates in a longer synthetic route.
Oxidation of acid-sensitive substrates: buffered with sodium acetate or used on a solid support, PCC can be used with substrates that would otherwise react badly to its mild acidity.
Advanced synthesis teaching practicals: as a stable, easily weighed solid with well-documented behavior, PCC suits university courses that demonstrate selective alcohol oxidation to students.

From the TCI brochure

Oxidation of alcohols

Brand	TCI (product code P0930)
CAS number	26299-14-9
Molecular formula	—
Purity	—
Category	Chemistry > Synthetic Reagents > Oxidation [Synthetic Reagents]
Pack sizes	see the pack size options listed on this product page
Physical form	stable yellow-orange solid
Storage	keep tightly closed in a dry place, away from moisture and incompatible materials

Store Pyridinium Chlorochromate in its original, tightly sealed container in a cool, dry, well-ventilated area, protected from moisture. Keep it away from reducing agents, flammable materials, and organic substances that are not part of a planned reaction, because it is an oxidizer. PCC is a chromium(VI) compound, so handle it with care. Weigh and use it in a fume hood, and wear suitable gloves, eye protection, and a laboratory coat. Do not create dust and avoid skin contact. Collect chromium-containing residues and reaction waste separately and dispose of them under your institution's hazardous waste procedures. Always check the supplier's Safety Data Sheet before use.

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