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Merck
CN

94119

Glycine

analytical standard, for nitrogen determination according to Kjeldahl method

Synonym(s):

2-Aminoacetic acid, Aminoacetic acid, Aminoethanoic acid, Glycocoll

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About This Item

Linear Formula:
NH2CH2COOH
CAS Number:
Molecular Weight:
75.07
NACRES:
NA.24
PubChem Substance ID:
eCl@ss:
32160406
UNSPSC Code:
12352209
EC Number:
200-272-2
MDL number:
Beilstein/REAXYS Number:
635782
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grade

analytical standard

Quality Segment

assay

≥99.0%

analyte chemical class(es)

amino acids, peptides, proteins

technique(s)

HPLC: suitable, gas chromatography (GC): suitable, titration: suitable

impurities

18.6%±0.2% total nitrogen acc. to Kjeldahl

loss

≤0.05% loss on drying

pKa (25 °C)

(1) 2.35, (2) 9.60, 2.35

mp

240 °C (dec.) (lit.)

solubility

1 M HCl: 75 mg/L, clear, colorless (2.252g in 30mL)

anion traces

chloride (Cl-): ≤50 mg/kg

cation traces

NH4+: ≤200 mg/kg

application(s)

food and beverages

format

neat

SMILES string

NCC(O)=O

InChI

1S/C2H5NO2/c3-1-2(4)5/h1,3H2,(H,4,5)

InChI key

DHMQDGOQFOQNFH-UHFFFAOYSA-N

General description

The glycine standard is produced under stringent conditions and measured with the highest possible precision.

Application

It can be used as an analytical standard to:
  • Evaluate Kjeldahl′s procedure to determine total protein content of reference standards used in clinical laboratories.
  • Analyze beer and wine for their protein and total usable nitrogen using a microwell ninhydrin assay.
  • Compare Kjeldahl and Dumas methods for routine analysis of dairy products in an interlaboratory study.
  • Simultaneously determine total phosphorus and total Kjeldahl nitrogen in surface water samples.
  • Quantitatively determine nitrate in surface waters using Valdetrama method.
  • Measure low level Kjeldahl nitrogen using an AutoAnalyzer.

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

Biochem/physiol Actions

Inhibitory neurotransmitter in spinal cord, allosteric regulator of NMDA receptors.

Features and Benefits

  • Available in a neat format in a secure glass bottle to ensure its stability for the entire shelf life until opened.
  • High-quality offering accurate titer determinations



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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

ppe

Eyeshields, Gloves, type N95 (US)



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