Basic information Safety Supplier Related

Methyl 5-amino-1H-1,2,4-triazole-3-carboxylate

Basic information Safety Supplier Related

Methyl 5-amino-1H-1,2,4-triazole-3-carboxylate Basic information

Product Name:
Methyl 5-amino-1H-1,2,4-triazole-3-carboxylate
Synonyms:
  • Methyl 3-aMino-1,2,4-triazole-5-carboxylate
  • Methyl 5-aMino-1,2,4-triazole-3-carboxylate
  • Methyl 5-AMino-1H-1,2,4-Triazole-3-Carboxylate Sulfate Salt
  • 5-Amino-1H-[1,2,4]-triazole-3-carboxylic acid methyl ester 96%
  • 1H-1,2,4-Triazole-3-carboxylicacid, 5-amino-, methyl ester
  • 5-Amino-1H-[1, 2, 4]-triazole-3-carboxylic acid methyleester
  • 2,4-triazole-3-carboxylicacid,5-amino-1h-methylester
  • 5-AMINO-1H-1 2 4-TRIAZOLE-3-CARBOXYLIC
CAS:
3641-14-3
MF:
C4H6N4O2
MW:
142.12
EINECS:
222-869-7
Product Categories:
  • Building Blocks
  • Heterocyclic Building Blocks
  • Triazoles
  • Building Blocks
  • Chemical Synthesis
  • Heterocyclic Building Blocks
Mol File:
3641-14-3.mol
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Methyl 5-amino-1H-1,2,4-triazole-3-carboxylate Chemical Properties

Melting point:
218-222 °C (lit.)
Boiling point:
379.0±25.0 °C(Predicted)
Density 
1.505±0.06 g/cm3(Predicted)
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
pka
8.92±0.40(Predicted)
form 
Crystalline Powder
color 
White
InChI
InChI=1S/C4H6N4O2/c1-10-3(9)2-6-4(5)8-7-2/h1H3,(H3,5,6,7,8)
InChIKey
MGRNUMFYRVKLEO-UHFFFAOYSA-N
SMILES
N1C(N)=NC(C(OC)=O)=N1
CAS DataBase Reference
3641-14-3(CAS DataBase Reference)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
43
Safety Statements 
36/37
WGK Germany 
3
HazardClass 
IRRITANT
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Methyl 5-amino-1H-1,2,4-triazole-3-carboxylate Usage And Synthesis

Synthesis

67-56-1

3641-13-2

3641-14-3

To a solution of 5-amino-1H-1,2,4-triazole-3-carboxylic acid (3.9 g, 30.45 mmol) in methanol (100 mL) was slowly added thionyl chloride (SOCl2, 12 g, 100.84 mmol). The reaction mixture was stirred at 70 °C for 48 hours. Upon completion of the reaction, the mixture was concentrated under reduced pressure to remove the solvent. The residue was dissolved in water (100 mL) and the pH was adjusted with saturated sodium bicarbonate (NaHCO3) solution to 8. Subsequently, the aqueous phase was extracted with dichloromethane (3 x 50 mL). The organic layers were combined, dried with anhydrous magnesium sulfate, filtered and concentrated under reduced pressure to afford methyl 5-amino-1H-1,2,4-triazole-3-carboxylate as a white solid (800 mg, 65% yield). The product was confirmed by LC/MS (ES, m/z): [M + H]+ 143.0. 1H NMR (300 MHz, DMSO-d6): δ 3.85 (s, 3H).

References

[1] Chemical and Pharmaceutical Bulletin, 2004, vol. 52, # 2, p. 192 - 198
[2] Russian Journal of Applied Chemistry, 2006, vol. 79, # 5, p. 783 - 786
[3] Patent: WO2014/66743, 2014, A1. Location in patent: Paragraph 0146

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