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Melting point standard 121-123°C

analytical standard

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Synonym(s):
Benzoic acid
Linear Formula:
C6H5COOH
CAS Number:
65-85-0
Molecular Weight:
122.12
Beilstein:
636131
EC Number:
200-618-2
MDL number:
MFCD00002398
UNSPSC Code:
20121904
PubChem Substance ID:
329766569
NACRES:
NA.24

grade

analytical standard

Quality Level

100

vapor density

4.21 (vs air)

vapor pressure

10 mmHg ( 132 °C)

autoignition temp.

1061 °F

shelf life

limited shelf life, expiry date on the label

bp

249 °C (lit.)

mp

121-123 °C (±0.3°C)
121-125 °C (lit.)

application(s)

food and beverages
pharmaceutical

format

neat

SMILES string

OC(=O)c1ccccc1

InChI

1S/C7H6O2/c8-7(9)6-4-2-1-3-5-6/h1-5H,(H,8,9)

InChI key

WPYMKLBDIGXBTP-UHFFFAOYSA-N

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General description

Benzoic acid melting point standard, 121-123 °C is useful as a melting point calibration standard while defining the purity of pharmaceutical chemicals. Its melting point value is determined with an average of 6 to 12 measurements using a Büchi B-545 instrument that is calibrated against primary standards.

Application

Melting point standard 121-123 °C, benzoic acid is an analytical standard used to calibrate melting point instruments, in the thermodynamic mode of operation. It is also used in R & D labs for chemical quality control (QC) and quality assurance (QA) to identify solid crystalline substances and to check their purity.

Features and Benefits

  • Melting point calibration standard traceable to primary standards (LGC, London)
  • Grade: Analytical Standard
  • Uncertainty of measurement up to ± 0.3 °C
  • Provided with certificates of analysis and safety data sheet
  • A product of analytical standard grade that meets the QC/QA requirements of melting point analysis

Pictograms

Health hazardCorrosion
GHS08,GHS05

Signal Word

Danger

Hazard Statements

H315,H318,H372

Hazard Classifications

Eye Dam. 1 - Skin Irrit. 2 - STOT RE 1 Inhalation

Target Organs

Lungs

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Certificates of Analysis (COA)

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Kasture.V.A
Pharmaceutical Analysis, 1 (2008)
Renbo Wei et al.
Macromolecular rapid communications, 34(4), 330-334 (2013-01-03)
A new approach is developed to fabricate highly oriented mono-domain LCE nano/microstructures through micro-molding in capillaries. Gratings and microwires as two typical examples are fabricated and characterized by polarizing optical microscopy, optical microscopy, and scanning electron microscopy. The gratings with
Copper-mediated C-H/C-H biaryl coupling of benzoic acid derivatives and 1,3-azoles.
Mayuko Nishino et al.
Angewandte Chemie (International ed. in English), 52(16), 4457-4461 (2013-03-21)
Ly Dieu Tran et al.
Journal of the American Chemical Society, 134(44), 18237-18240 (2012-10-30)
An auxiliary-assisted, copper catalyzed or promoted sulfenylation of benzoic acid derivative β-C-H bonds and benzylamine derivative γ-C-H bonds has been developed. The method employs disulfide reagents, copper(II) acetate, and DMSO solvent at 90-130 °C. Application of this methodology to the
Wanchun Xiang et al.
ChemSusChem, 6(2), 256-260 (2013-01-25)
Sensing the sun: Incorporation of a cyanomethyl benzoic acid electron acceptor into donor-π-acceptor sensitizers for dye-sensitized-solar cell is shown to lead to devices with improved conversion efficiency when compared with more widely used cyanoacetic acid acceptor.
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