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88070-98-8

88070-98-8 structure
88070-98-8 structure
  • Name: HELSS
  • Chemical Name: (6E)-6-(bromomethylidene)-3-naphthalen-1-yloxan-2-one
  • CAS Number: 88070-98-8
  • Molecular Formula: C16H13BrO2
  • Molecular Weight: 317.177
  • Catalog: Signaling Pathways Metabolic Enzyme/Protease Phospholipase
  • Create Date: 2018-06-18 23:33:21
  • Modify Date: 2024-01-05 17:39:54
  • Bromoenol lactone ((6E)-Bromoenol lactone) is a suicide-based irreversible, selective, potent inhibitor of calcium-independent phospholipase A2 (iPLA2β) with an IC50 value of approximately 7 μM, which inhibits antigen-stimulated mast cell exocytosis without blocking Ca2+ influx[1][2].

Name (6E)-6-(bromomethylidene)-3-naphthalen-1-yloxan-2-one
Synonyms Haloenol lactone suicide substrate
MFCD00270871
bromoenol lactone
2H-Pyran-2-one, 6-(bromomethylene)tetrahydro-3-(1-naphthalenyl)-, (6Z)-
6-Btnpo
L66J B- FT6VOYTJ CU1E
HELSS
BEL
(6Z)-6-(Bromomethylene)-3-(1-naphthyl)tetrahydro-2H-pyran-2-one
BTNP
Description Bromoenol lactone ((6E)-Bromoenol lactone) is a suicide-based irreversible, selective, potent inhibitor of calcium-independent phospholipase A2 (iPLA2β) with an IC50 value of approximately 7 μM, which inhibits antigen-stimulated mast cell exocytosis without blocking Ca2+ influx[1][2].
Related Catalog
Target

PLA2:7 μM (IC50)

In Vitro In RBL 2H3 and bone marrow-derived mast cells (BMMCs), Ca2+ entry is critical for exocytosis. Bromoenol lactone inhibits exocytosis when stimulated using a Ca2+ ionophore A23187, which passively transports Ca2+ down a concentration gradient and also in permeabilised mast cells where Ca2+ entry is no longer relevant. Moreover, Bromoenol lactone has only a minor effect on antigen- or thapsigargin-stimulated Ca2+ signalling, both the release from internal stores and sustained elevation due to Ca2+ influx[1].
References

[1]. Fensome-Green A, et al. Bromoenol lactone, an inhibitor of Group V1A calcium-independent phospholipase A2 inhibits antigen-stimulated mast cell exocytosis without blocking Ca2+ influx. Cell Calcium. 2007 Feb;41(2):145-53.

[2]. Takuma T, et al. Role of Ca2+-independent phospholipase A2 in exocytosis of amylase from parotid acinar cells. J Biochem. 1997 Jun;121(6):1018-24.

Density 1.5±0.1 g/cm3
Boiling Point 467.0±45.0 °C at 760 mmHg
Molecular Formula C16H13BrO2
Molecular Weight 317.177
Flash Point 236.2±28.7 °C
Exact Mass 316.009888
PSA 26.30000
LogP 4.36
Vapour Pressure 0.0±1.2 mmHg at 25°C
Index of Refraction 1.716
Storage condition -20°C
Symbol GHS07
GHS07
Signal Word Warning
Hazard Statements H315-H319-H335
Precautionary Statements P261-P305 + P351 + P338
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes Xi: Irritant;
Risk Phrases 36/37/38
Safety Phrases 26
RIDADR NONH for all modes of transport