o-Phthaldehyde, GR 99%+

Name: o-Phthaldehyde, GR 99%+
Brand: Vaqora Chemicals
SKU: VQ-003370

About o-Phthaldehyde, GR 99%+

Listed under CAS 643-79-8, o-Phthaldehyde is a molecular biology reagent available from Vaqora Chemicals in AR grade, specified at ≥99% purity. The compound has the formula C8H6O2, corresponding to a molecular weight of 134.13 g/mol. The IUPAC name is phthalaldehyde. Alternative names: 2-Phthalaldehyde and o-Phthalic dicarboxaldehyde.

In its supplied form it is a light yellow to yellow with a green cast powder. Key physical data: a melting point of 54-58 °C. Keep the material at 2–8 °C and protect it from moisture. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Typical applications include electrophoresis, DNA/RNA workflows, protein analysis and chromatography. It is used across academic and industrial research and diagnostics and biotechnology.

Vaqora Chemicals supplies o-Phthaldehyde in 1 g, 5 g, 25 g and 100 g packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Electrophoresis
DNA/RNA workflows
Protein analysis
Chromatography

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	o-Phthaldehyde, GR 99%+
Catalogue No.	VQ-003370
CAS Number	643-79-8
IUPAC name	phthalaldehyde
Molecular formula	C₈H₆O₂
Molecular weight	134.13 g/mol
Exact mass	134.0368
Grade	AR
Purity / assay	≥99%
HSN code	29122990
InChIKey	ZWLUXSQADUDCSB-UHFFFAOYSA-N
SMILES	C1=CC=C(C(=C1)C=O)C=O
PubChem CID	4807

Physical properties
Physical form	Powder
Appearance	Light yellow to yellow with a green cast powder
Melting point	54-58 °C
LogP (XLogP3)	1.2
H-bond donors / acceptors	0 / 2
TPSA	34.1 Å²
Storage	2–8 °C
Synonyms	2-Phthalaldehyde, o-Phthalic dicarboxaldehyde, Benzene-1,2-dicarboxaldehyde, OPA, Phthaldialdehyde, o-Phthalaldehyde, o-Phthaldialdehyde, 1,2-Benzenedicarboxaldehyde, Phthalic aldehyde, ortho-Phthalaldehyde, benzene-1,2-dicarbaldehyde, Phthalic dialdehyde

Safety & hazard information (GHS)

Flammable

Corrosive

Toxic

Harmful / irritant

Health hazard

Environmental hazard

Signal word: Danger

Hazard statements

H228Flammable solid
H301Toxic if swallowed
H314Causes severe skin burns and eye damage
H315Causes skin irritation
H317May cause an allergic skin reaction
H318Causes serious eye damage
H335May cause respiratory irritation
H373May causes damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary statements: P210, P240, P241, P260, P261, P264, P264 + P265, P270, P271, P272, P273, P280, P301 + P316, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P317, P319, P321, P330, P332 + P317

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 643-79-8

LR

o-Phthaldehyde, LR ≥97.00%

CAS: 643-79-8
Formula: C₈H₆O₂
MW: 134.13 g/mol

VQ-046854

Frequently asked questions

What is the CAS number of o-Phthaldehyde, GR 99%+?

The CAS Registry Number of o-Phthaldehyde, GR 99%+ is 643-79-8. It is also known as 2-Phthalaldehyde, o-Phthalic dicarboxaldehyde, Benzene-1,2-dicarboxaldehyde.

What is the molecular formula and molecular weight of o-Phthaldehyde, GR 99%+?

o-Phthaldehyde, GR 99%+ has the molecular formula C8H6O2 and a molecular weight of 134.13 g/mol. Its IUPAC name is phthalaldehyde.

Which grade and pack sizes of o-Phthaldehyde, GR 99%+ can I order?

We supply o-Phthaldehyde, GR 99%+ in AR (≥99%) grade, in 1 g, 5 g, 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with o-Phthaldehyde, GR 99%+?

Yes. Every lot of o-Phthaldehyde, GR 99%+ is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can o-Phthaldehyde, GR 99%+ be shipped internationally?

Yes. o-Phthaldehyde, GR 99%+ is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.

How should o-Phthaldehyde, GR 99%+ be stored?

2–8 °C. Keep the container tightly closed and refer to the SDS for full handling guidance.