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76170

Melting point standard 121-123°C

analytical standard

Synonyme(s) :

Acide benzoïque, Étalon de point de fusion de 121 à 123 °C

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A propos de cet article

Formule linéaire :
C6H5COOH
Numéro CAS:
65-85-0
Poids moléculaire :
122.12
UNSPSC Code:
20121904
NACRES:
NA.24
PubChem Substance ID:
329766569
EC Number:
200-618-2
Beilstein/REAXYS Number:
636131
MDL number:
MFCD00002398
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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

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

signalword

Danger

Hazard Classifications

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

target_organs

Lungs

Classe de stockage

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

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Certificats d'analyse (COA)

Lot/Batch Number
BCCP4592
BCCN5569
BCCM3705
BCCM0006
BCCK6317

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Consulter la Bibliothèque de documents

Kasture.V.A
Pharmaceutical Analysis, 1 (2008)
S Nacht et al.
Journal of the American Academy of Dermatology, 4(1), 31-37 (1981-01-01)
The transepidermal penetration and metabolic disposition of 14C-benzoyl peroxide were assessed in vitro (excised human skin) and in vivo (rhesus monkey). In vitro, the benzoyl peroxide penetrated into the skin, through the stratum corneum or the follicular openings, or both
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
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