Basic information Safety Supplier Related

LEU-ENKEPHALIN AMIDE

Basic information Safety Supplier Related

LEU-ENKEPHALIN AMIDE Basic information

Product Name:
LEU-ENKEPHALIN AMIDE
Synonyms:
  • ALPHA-NEOENDORPHIN (1-5) AMIDE
  • leucine enkephalinamide acetate
  • DYNORPHIN A (1-5) AMIDE
  • DYNORPHIN A (1-5) AMIDE ACETATE SALT
  • H-TYR-GLY-GLY-PHE-LEU-NH2
  • H-TYR-GLY-GLY-PHE-LEU-NH2 ACETATE SALT
  • LEU-ENKEPHALIN NH2
  • LEU-ENKEPHALIN AMIDE
CAS:
60117-24-0
MF:
C28H38N6O6
MW:
554.64
Mol File:
60117-24-0.mol
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LEU-ENKEPHALIN AMIDE Chemical Properties

Melting point:
123-126 °C
Boiling point:
1012.8±65.0 °C(Predicted)
Density 
1.254±0.06 g/cm3(Predicted)
storage temp. 
−20°C
solubility 
Soluble in DMSO
pka
9.97±0.15(Predicted)
form 
Solid
color 
White to off-white
Sequence
Tyr-Gly-Gly-Phe-Leu-NH2
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Safety Information

WGK Germany 
3
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LEU-ENKEPHALIN AMIDE Usage And Synthesis

Uses

[Leu5]-Enkephalin, amide is a δ opioid receptor agonist.

in vivo

Levels of [Leu5]-Enkephalin are significantly increased in the nucleus raphe magnus (NRM) of rats 2 weeks after the injection of complete Freund's adjuvant (CFA) (1.02±0.2 pmol/mg protein) as compared with saline-treated rats (0.49±0.04 pmol/mg protein; p<0.01). Tissue levels of [Leu5]-Enkephalin are uniformly increased in the caudal ventrolateral periaqueductal gray (PAG) 4 hr (1.15±0.25 pmol/mg protein), 4 d (1.16±0.18 pmol/mg protein), and 2 weeks (1.18±0.17 pmol/mg protein) after the injection of CFA as compared with saline-treated rats (0.55±0.03 pmol/mg protein; p<0.05, all times). A smaller increase in the levels of [Leu5]-Enkephalin occurred in the rostral aspect of the ventrolateral PAG at all time points. Finally, levels of [Leu5]-Enkephalin are also increased in the contralateral microcellular tegmental nucleus 4 d after the injection of CFA (0.53±0.04 pmol/mg protein) compared with levels in saline-treated rats (0.38±0.02 pmol/mg protein; p<0.05)[1].

References

[1] Hurley RW, et al. Contribution of endogenous enkephalins to the enhanced analgesic effects of supraspinal mu opioid receptor agonists after inflammatory injury. J Neurosci. 2001 Apr 1;21(7):2536-45. DOI:10.1523/JNEUROSCI.21-07-02536.2001
[2] Kennedy C, et al. [Met5]enkephalin acts via delta-opioid receptors to inhibit pelvic nerve-evoked contractions of cat distal colon. Br J Pharmacol. 1987 Oct;92(2):291-8. DOI:10.1111/j.1476-5381.1987.tb11323.x

LEU-ENKEPHALIN AMIDESupplier

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