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Merck

33226

Glycine

99.7-101% (calc. to the dried substance), crystalline powder, suitable for IR spectroscopy, puriss. p.a., reag. Ph. Eur., buffer substance

Synonym(s):

Aminoacetic acid, Aminoethanoic acid, Glycocoll

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About This Item

Linear Formula:
NH2CH2COOH
CAS Number:
Molecular Weight:
75.07
NACRES:
NA.21
PubChem Substance ID:
eCl@ss:
32160406
UNSPSC Code:
12352209
EC Number:
200-272-2
MDL number:
Beilstein/REAXYS Number:
635782
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Product Name

Glycine, puriss. p.a., reag. Ph. Eur., buffer substance, 99.7-101% (calc. to the dried substance)

Quality Segment

agency

USP/NF, reag. Ph. Eur.

grade

puriss. p.a.

assay

99.7-101% (calc. to the dried substance)

form

crystalline powder

technique(s)

IR spectroscopy: suitable

impurities

≤0.001% heavy metals (as Pb), ≤0.02% ammonium (NH4), ≤0.1% water (Karl Fischer), ≤1.0% ninhydrin-positive substances

ign. residue

≤0.05% (as SO4)

loss

≤0.5% loss on drying, 105°C, 2 h

pH

5.9-6.4 (20 °C, 5%)

pKa (25 °C)

(1) 2.35, (2) 9.60, 2.35

mp

240 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤30 mg/kg, sulfate (SO42-): ≤20 mg/kg

cation traces

Fe: ≤5 mg/kg

suitability

in accordance for identity (IR)

functional group

amine, carboxylic acid

SMILES string

NCC(O)=O

InChI

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

InChI key

DHMQDGOQFOQNFH-UHFFFAOYSA-N

Gene Information

rat ... Grin2a(24409)

Application

Glycine can be used as:
  • A reactant in the natural soil clay-catalyzed cleavage and polycondensation with pyrogallol.
  • A catalyst in the Knoevenagel reaction between aryl aldehydes and malononitrile to form a C=C bond.
  • A reagent in the metal-free synthesis of biaryls from aryl sulfoxides and sulfonanilides via sigmatropic rearrangement.

Biochem/physiol Actions

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


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Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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