Bis(2,4,5-trichloro-6-carbopentoxyphenyl)oxalate (CPPO)

CAS NO. 30431-54-0

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Oxalate Ester Organochlorine Chemiluminescent Agent Analytical Chemistry Research chemical

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Parameter	Typical Value / Specification
Product Name	CPPO (Bis[3,4,6-trichloro-2-(pentyloxycarbonyl)phenyl] Oxalate)
Synonyms	Chemiluminescent oxalate ester; Bis(2,4,5-trichloro-6-pentyloxycarbonylphenyl) oxalate; Oxalato CPPO
CAS Number	30431-54-0
Molecular Formula	C₂₆H₂₄Cl₆O₈
Molecular Weight	677.18 g/mol
Appearance	White crystalline solid
Melting Point	82.0–84.0 °C
Assay (HPLC)	≥ 97.0%
Loss on Drying	≤ 0.3%
Solubility	Soluble in common aprotic organic solvents (e.g. dibutyl phthalate, ethyl acetate); insoluble in water
Product Class	Chemiluminescent oxalate ester (peroxyoxalate chemistry substrate)
Standard Packaging	25 kg fiber drum
Storage Conditions	Store sealed in a cool, dry, well-ventilated area, away from moisture and reducing agents
Distribution	US-stocked · Ships from New Jersey
Quality Documentation	COA & SDS provided per shipment

Values shown are representative typical values, not guaranteed limits for any specific lot. The Certificate of Analysis (COA) issued with each shipment is the binding specification document for that lot.

Industrial Applications of CPPO (CAS 30431-54-0)

CPPO — bis[3,4,6-trichloro-2-(pentyloxycarbonyl)phenyl] oxalate, also known as the chemiluminescent oxalate ester (oxalato CPPO) — is one of the principal substrates used in peroxyoxalate chemiluminescence (PO-CL) systems. The PO-CL reaction class has been part of the public technical record since the 1960s and is applied today across self-contained light articles, analytical detection methods, and photochemical research. Nexal supplies CPPO at ≥97.0% HPLC purity.

• Peroxyoxalate Chemiluminescence (PO-CL) Light Articles

CPPO acts as the activated oxalate ester in classical peroxyoxalate chemiluminescence systems. When combined with a hydrogen peroxide source and a fluorophore in a suitable solvent, the system emits visible light without an external power source. This reaction class was first published in the open scientific literature in the 1960s and is now part of the established public technical record.

End Products: Self-contained light articles such as emergency markers, safety beacons, recreational glow products, and similar non-electrical light sources.

• Analytical Chemistry & Chemiluminescence Detection

CPPO is widely cited in academic literature as a post-column chemiluminescence reagent for the detection of hydrogen peroxide, hydroperoxides, and fluorescent analytes in HPLC, flow-injection analysis (FIA), and capillary electrophoresis. The methodology is part of the established public technical record from the 1980s onward.

End Products: Laboratory detection reagents, hydroperoxide monitoring methods, academic and method-development reagents.

• Photochemistry & Sensor Research

CPPO is used as a starting material in academic and industrial laboratories for chemiluminescence-based sensor development, photochemical mechanism studies, and the formulation of experimental light-emitting compositions.

End Products: Laboratory chemiluminescence research reagents, prototype sensor formulations, photochemistry teaching materials, and reference standards.

Material Characteristics: White crystalline solid, melting point 82–84 °C, ≥97.0% HPLC assay, low residual moisture (LOD ≤0.3%). Material is sold as a chemical raw material; suitability for any specific downstream application is to be confirmed by the buyer.

Product Description

Applications

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Bis(2,4,5-trichloro-6-carbopentoxyphenyl)oxalate (CPPO)

Industrial Applications of CPPO (CAS 30431-54-0)

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