Phthalic acid
SIAL/79255 - analytical standard
Synonym: 1,2-
CAS Number: 88-99-3
Empirical Formula (Hill Notation): C8H6O4
Molecular Weight: 166.13
EC Number: 201-873-2
MDL Number: MFCD00002467
Linear Formula: C6H4-1,2-(CO2H)2
Product Type: Chemical
application(s) | cleaning products cosmetics food and beverages personal care |
assay | ≥99.5% (GC) |
≥99.5% (T) | |
format | neat |
grade | analytical standard |
impurities | ≤0.5% water |
InChI | 1S/C8H6O4/c9-7(10)5-3-1-2 |
InChI key | XNGIFLGASWRNHJ-UHFFFAOYSA |
mp | 210-211 °C (dec.) (lit.) |
Quality Level | 100 ![]() |
shelf life | limited shelf life, expiry date on the label |
SMILES string | OC(C1=C(C(O)=O)C=CC=C1)=O |
technique(s) | gas chromatography (GC): suitable |
HPLC: suitable |
Application: | Phthalic acid may be used as an analytical reference standard for the quantification of the analyte in the following: • Angelicae Radix and Ligustici Rhizoma using high performance liquid chromatography with photodiode array detection (HPLC-PDA) followed by liquid chromatography coupled to mass spectrometry (LC-MS) and capillary electrophoresis (CE) analyses. • Nigella sativa and Solanum nigrum using gas chromatography-mass spectrometry (GC-MS). |
Application: | Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support. |
General description: | Phthalic acid is an organic acid and a major bioactive component, reportedly identified in the extracts of Solanum nigrum, Nigella sativa, Angelicae Radix and Ligustici Rhizoma, utilized as Chinese herbal medicines. |
Symbol | ![]() |
Signal word | Warning |
Hazard statements | H315 - H319 - H335 |
Precautionary statements | P302 + P352 - P305 + P351 + P338 |
Hazard Codes | Xi |
Risk Statements | 36/37/38 |
Safety Statements | 26 |
RIDADR | NONH for all modes of transport |
WGK Germany | WGK 1 |
Purity | ≥99.5% (GC); ≥99.5% (T) |
mp | 210-211 °C (dec.) (lit.) |
UNSPSC | 85151701 |