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Letrozole

Letrozole

CAS:
112809-51-5
MF:
C17H11N5
MW:
285.3

Properties

Melting point:
181-183°C
Boiling point:
563.5±60.0 °C(Predicted)
Density 
1.21±0.1 g/cm3(Predicted)
storage temp. 
2-8°C
solubility 
DMSO: >50mg/mL
pka
1.52±0.11(Predicted)
form 
White powder
color 
white to off-white
Merck 
14,5450
InChI
InChI=1S/C17H11N5/c18-9-13-1-5-15(6-2-13)17(22-12-20-11-21-22)16-7-3-14(10-19)4-8-16/h1-8,11-12,17H
InChIKey
HPJKCIUCZWXJDR-UHFFFAOYSA-N
SMILES
C(C1=CC=C(C=C1)C#N)(C1=CC=C(C=C1)C#N)N1C=NC=N1

Safety Information

Symbol(GHS) 

GHS08
Signal word 
Warning
Hazard statements 
H361fd-H373
Precautionary statements 
P202-P260-P280-P308+P313-P405-P501
Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
3
RTECS 
DI4957000
HS Code 
2933997500

Use

Letrozole, 4,4'-(1H-1,2,4-triazol-1-ylmethylene)dibenzonitrile (Femara), is used for most of thesame indications as anastrozole. It reduces concentrations ofestrogens by 75% to 95%, with maximal suppressionachieved within 2 to 3 days. Letrozole is specific for aromataseinhibition, with no additional effects on adrenal corticoidbiosynthesis. CYPs 3A4 and 2A6 are involved in themetabolism of letrozole to the major carbinol metabolite,which is inactive. The loss of the triazole ring, which is involvedin coordination of the heme iron, would explain theloss of activity. Letrozole strongly inhibits CYP2A6 invitro, with moderate inhibition of CYP2C19. The effect ofthis in vitro inhibition on the pharmacokinetics of coadministereddrugs is unknown. Tamoxifen reduces the levels ofletrozole significantly if they are used together, so combinationtreatment with these agents is not recommended.

122 India supplier list of "Letrozole"

  • Product Name:Letrozole
  • Products Intro:Purity: 98% | Package: 1 kg,5 kg, 10 kg,25kg
  • Company Type: Manufacturer
  • Country/Region: Gujarat,INDIA
  • Product Name:Letrozole
  • Products Intro:Purity: 98% | Package: 1 kg,5 kg, 10 kg,25kg
  • Company Type: Reagent
  • Country/Region: Hyderabad,INDIA
  • Product Name:Letrozole
  • Products Intro:Purity: 98% | Package: 1 kg,5 kg, 10 kg,25kg
  • Company Type: Manufacturer
  • Country/Region: Mumbai,INDIA
  • Product Name:Letrozole
  • Products Intro:Purity: 98% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
  • Company Type: Reagent
  • Country/Region: Telangana,INDIA
  • Product Name:Letrozole
  • Products Intro:Purity: 99% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
  • Company Type: Reagent
  • Country/Region: Maharashtra,INDIA
  • Product Name:Letrozole
  • Products Intro:Purity: 99% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
  • Company Type: Manufacturer
  • Country/Region: New Delhi,INDIA
  • Product Name:Letrozole
  • Products Intro:Purity: 99% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
  • Company Type: Manufacturer
  • Country/Region: Uttar Pradesh,INDIA
  • Product Name:Letrozole
  • Products Intro:Purity: 98% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
  • Company Type: Reagent
  • Country/Region: Ahmedabad,INDIA
  • Product Name:LetrozoleAPI & intermediates
  • Products Intro:Purity: 98% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
  • Company Type: Manufacturer
  • Country/Region: Telangana,INDIA
  • Product Name:Letrozole
  • Products Intro:Purity: 98% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
  • Company Type: Reagent
  • Country/Region: Bangalore,INDIA

Letrozole Related Search:

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