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Merck

94119

グリシン

analytical standard, for nitrogen determination according to Kjeldahl method

別名:

アミノエタン酸, アミノ酢酸, グリココール

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この商品について

化学式:
NH2CH2COOH
CAS番号:
分子量:
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 Level

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

脊髄における抑制性神経伝達物質であり、NMDAレセプターのアロステリック調節因子です。

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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保管分類

13 - Non Combustible Solids

wgk

WGK 1

ppe

Eyeshields, Gloves, type N95 (US)



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Structure of Glycine Dihyrate: Its Implications to Crystallization of Glycine from Solution and Modification of Glycine in Space
Hu.T.C, et al.
Acta Crystallographica Section A, Foundations of Crystallography, 73 (2017)
The Structure of Glycine Dihydrate: Implications for the Crystallization of Glycine from Solution and Its Structure in Outer Space
Xu W, et al.
Angewandte Chemie (Weinheim an der Bergstrasse, Germany), 129, 2062-2066 (2017)
Alexander Carvajal-González et al.
Brain : a journal of neurology, 137(Pt 8), 2178-2192 (2014-06-22)
The clinical associations of glycine receptor antibodies have not yet been described fully. We identified prospectively 52 antibody-positive patients and collated their clinical features, investigations and immunotherapy responses. Serum glycine receptor antibody endpoint titres ranged from 1:20 to 1:60 000.