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Merck
CN

40818

Terephthalic acid

analytical standard

Synonym(s):

Benzene-1,4-dicarboxylic acid

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About This Item

Linear Formula:
C6H4-1,4-(CO2H)2
CAS Number:
Molecular Weight:
166.13
UNSPSC Code:
85151701
NACRES:
NA.24
PubChem Substance ID:
EC Number:
202-830-0
Beilstein/REAXYS Number:
1909333
MDL number:
Technical Service
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grade

analytical standard

Quality Segment

vapor pressure

<0.01 mmHg ( 20 °C)

assay

≥98.0% (GC), 97.5-102.5% (T)

autoignition temp.

925 °F

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

mp

>300 °C (lit.)

format

neat

SMILES string

OC(=O)c1ccc(cc1)C(O)=O

InChI

1S/C8H6O4/c9-7(10)5-1-2-6(4-3-5)8(11)12/h1-4H,(H,9,10)(H,11,12)

InChI key

KKEYFWRCBNTPAC-UHFFFAOYSA-N

General description

This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food. Find all available reference materials for compounds listed in 10/2011 here

Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Other Notes

Ion Mobility: TWCCSN2 value of 129.7 Å2 [M-H]-

The collision cross section (CCS) measurement was provided by Waters Corporation, using the SYNAPT XS mass spectrometer.
For a description and overview of how ion mobility enables the measurement of the CCS of an ion visit ims.waters.com.
Further information on the SYNAPT XS mass spectrometer can be found on the IMS microsite and product webpage.

TWCCS measurements are expected to be within 2% of this reference value.

P/N 40818 is part of the Waters Extractables & Leachables UNIFI scientific library which can be downloaded from Waters Marketplace.


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Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable



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