134470-38-5

134470-38-5 structure
134470-38-5 structure
  • Name: BW-B 70C
  • Chemical Name: bw b70c
  • CAS Number: 134470-38-5
  • Molecular Formula: C17H17FN2O3
  • Molecular Weight: 316.32700
  • Catalog: Research Areas Others
  • Create Date: 2016-10-30 10:40:35
  • Modify Date: 2025-08-25 19:31:54
  • BW B70C is a potent, selective and orally activearachidonic acid 5-lipoxygenase inhibitor. BW B70C inhibits both acute and allergic bronchoconstriction and late-phase eosinophil accumulation subsequent to allergen inhalation in guinea-pigs. BW B70C prevents leukotriene C4 synthesis and reduces leucocyte migration to the airways lumen as well as albumin microvascular leakage. BW B70C has the potential for the research of anti-asthma drug[1][2][3].

Name bw b70c
Synonyms 70C
1-[(E)-4-[3-(4-fluorophenoxy)phenyl]but-3-en-2-yl]-1-hydroxyurea
N-[3-[3-4(-Fluorophenoxy)phenyl]-1-methyl-2-propenyl]-N-hydroxyurea
Description BW B70C is a potent, selective and orally activearachidonic acid 5-lipoxygenase inhibitor. BW B70C inhibits both acute and allergic bronchoconstriction and late-phase eosinophil accumulation subsequent to allergen inhalation in guinea-pigs. BW B70C prevents leukotriene C4 synthesis and reduces leucocyte migration to the airways lumen as well as albumin microvascular leakage. BW B70C has the potential for the research of anti-asthma drug[1][2][3].
Related Catalog
In Vivo BW B70C (30 mg/kg; i.p.) prevents leukotriene C4 synthesis by alveolar macrophages and reduces leucocyte migration to the airways lumen as well as albumin microvascular leakage but did not affect the endotoxin-induced increase in the blood level of TNF-alpha and of secreted phospholipase A2[2].
References

[1]. Yeadon M, et al. Effect of BW B70C, a novel inhibitor of arachidonic acid 5-lipoxygenase, on allergen-induced bronchoconstriction and late-phase lung eosinophil accumulation in sensitised guinea-pigs. Agents Actions. 1993 Jan;38(1-2):8-18.

[2]. Bureau MF, et al. 5-Lipoxygenase and endotoxin-induced microvascular albumin exchanges and leucocyte recruitment in guinea-pig lungs. Eur J Pharmacol. 1997 Apr 11;324(1):89-98.

[3]. Payne AN, et al. Hydroxamic acids and hydroxyureas as novel, selective 5-lipoxygenase inhibitors for possible use in asthma. Agents Actions Suppl. 1991;34:189-99.

Density 1.295g/cm3
Boiling Point 498.9ºC at 760 mmHg
Molecular Formula C17H17FN2O3
Molecular Weight 316.32700
Flash Point 255.5ºC
Exact Mass 316.12200
PSA 75.79000
LogP 4.48990
Vapour Pressure 8.96E-11mmHg at 25°C
Index of Refraction 1.627

CHEMICAL IDENTIFICATION

RTECS NUMBER :
YT3976666
CHEMICAL NAME :
Urea, N-(3-(3-(4-fluorophenoxy)phenyl)-1-methyl-2-propenyl) -N-hydroxy-
CAS REGISTRY NUMBER :
134470-38-5
LAST UPDATED :
199803
DATA ITEMS CITED :
2
MOLECULAR FORMULA :
C17-H17-F-N2-O3
MOLECULAR WEIGHT :
316.36

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
700 mg/kg/14D-I
TOXIC EFFECTS :
Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis) Kidney, Ureter, Bladder - interstitial nephritis
REFERENCE :
ARTODN Archives of Toxicology. (Springer-Verlag, Heidelberger Pl. 3, D-1000 Berlin 33, Fed. Rep. Ger.) V.32- 1974- Volume(issue)/page/year: 69,480,1995
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
700 mg/kg/7D-I
TOXIC EFFECTS :
Kidney, Ureter, Bladder - changes primarily in glomeruli Kidney, Ureter, Bladder - proteinuria Blood - other changes
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 146,299,1997
Personal Protective Equipment Eyeshields;Gloves;half-mask respirator (US);multi-purpose combination respirator cartridge (US)
Safety Phrases S24/25
RIDADR NONH for all modes of transport
RTECS YT3976666
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