成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

Welcome to chemicalbook!
400-158-6606
Inquriy
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook >> CAS DataBase List >> Pyrimethamine

Pyrimethamine

Pyrimethamine price.
  • $5 - $1880
  • Product name: Pyrimethamine
  • CAS: 58-14-0
  • MF: C12H13ClN4
  • MW: 248.71
  • EINECS:200-364-2
  • MDL Number:MFCD00057350
  • Synonyms:2,4-Diamino-5-(4-chlorophenyl)-6-ethylpyrimidine;[2-amino-5-(4-chlorophenyl)-6-ethyl-pyrimidin-4-yl]amine;Pyrimethamine,5-(4-Chlorophenyl)-6-ethyl-2,4-pyrimidinediamine;Pyrimethamine (200 mg);PyriMethaMine,darapriM;5-(p-chlorophenyl)-6-ethyl-4-pyrimidinediamine ;BW 50-63;bw50-63
51 prices
Selected condition:
Brand
  • AHH
  • AK Scientific
  • Ambeed
  • ApexBio Technology
  • Arctom
  • Biorbyt Ltd
  • Cayman Chemical
  • Chem-Impex
  • ChemScene
  • Crysdot
  • CSNpharm
  • DC Chemicals
  • Matrix Scientific
  • Medical Isotopes, Inc.
  • Sigma-Aldrich
  • TCI Chemical
  • Tocris
  • TRC
  • Usbiological
Package
  • 10mg
  • 25mg
  • 50mg
  • 200mg
  • 500mg
  • 50
  • p4200000
  • 0.5g
  • 10mM(in 1mL DMSO)
  • 100mg
  • 250mg
  • 1g
  • 5g
  • 10g
  • 25g
  • 100g
  • 1500g
  • ManufacturerAHH
  • Product numberMT-22037
  • Product descriptionPyrimethamine 98%
  • Packaging1500g
  • Price$588
  • Updated2021-12-16
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ10587
  • Product descriptionPyrimethamine
  • Packaging100mg
  • Price$95
  • Updated2021-12-16
  • Buy
  • ManufacturerAK Scientific
  • Product numberD897
  • Product descriptionPyrimethamine
  • Packaging5g
  • Price$147
  • Updated2021-12-16
  • Buy
  • ManufacturerAK Scientific
  • Product numberD897
  • Product descriptionPyrimethamine
  • Packaging25g
  • Price$589
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA195764
  • Product descriptionPyrimethamine 98+%
  • Packaging100mg
  • Price$5
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA195764
  • Product descriptionPyrimethamine 98+%
  • Packaging250mg
  • Price$7
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA195764
  • Product descriptionPyrimethamine 98+%
  • Packaging1g
  • Price$9
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA195764
  • Product descriptionPyrimethamine 98+%
  • Packaging5g
  • Price$11
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA195764
  • Product descriptionPyrimethamine 98+%
  • Packaging10g
  • Price$19
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA195764
  • Product descriptionPyrimethamine 98+%
  • Packaging25g
  • Price$37
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA195764
  • Product descriptionPyrimethamine 98+%
  • Packaging100g
  • Price$103
  • Updated2021-12-16
  • Buy
  • ManufacturerApexBio Technology
  • Product numberA4353
  • Product descriptionPyrimethamine
  • Packaging100mg
  • Price$63
  • Updated2021-12-16
  • Buy
  • ManufacturerApexBio Technology
  • Product numberA4353
  • Product descriptionPyrimethamine
  • Packaging10mM(in 1mL DMSO)
  • Price$66
  • Updated2021-12-16
  • Buy
  • ManufacturerApexBio Technology
  • Product numberA4353
  • Product descriptionPyrimethamine
  • Packaging500mg
  • Price$133
  • Updated2021-12-16
  • Buy
  • ManufacturerArctom
  • Product numberAS016125
  • Product descriptionPyrimethamine ≥98%
  • Packaging100mg
  • Price$5
  • Updated2021-12-16
  • Buy
  • ManufacturerArctom
  • Product numberAS016125
  • Product descriptionPyrimethamine ≥98%
  • Packaging250mg
  • Price$7
  • Updated2021-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
AHH MT-22037 Pyrimethamine 98% 1500g $588 2021-12-16 Buy
AK Scientific J10587 Pyrimethamine 100mg $95 2021-12-16 Buy
AK Scientific D897 Pyrimethamine 5g $147 2021-12-16 Buy
AK Scientific D897 Pyrimethamine 25g $589 2021-12-16 Buy
Ambeed A195764 Pyrimethamine 98+% 100mg $5 2021-12-16 Buy
Ambeed A195764 Pyrimethamine 98+% 250mg $7 2021-12-16 Buy
Ambeed A195764 Pyrimethamine 98+% 1g $9 2021-12-16 Buy
Ambeed A195764 Pyrimethamine 98+% 5g $11 2021-12-16 Buy
Ambeed A195764 Pyrimethamine 98+% 10g $19 2021-12-16 Buy
Ambeed A195764 Pyrimethamine 98+% 25g $37 2021-12-16 Buy
Ambeed A195764 Pyrimethamine 98+% 100g $103 2021-12-16 Buy
ApexBio Technology A4353 Pyrimethamine 100mg $63 2021-12-16 Buy
ApexBio Technology A4353 Pyrimethamine 10mM(in 1mL DMSO) $66 2021-12-16 Buy
ApexBio Technology A4353 Pyrimethamine 500mg $133 2021-12-16 Buy
Arctom AS016125 Pyrimethamine ≥98% 100mg $5 2021-12-16 Buy
Arctom AS016125 Pyrimethamine ≥98% 250mg $7 2021-12-16 Buy

Properties

Melting point :233-234°C
Boiling point :393.35°C (rough estimate)
Density :1.2171 (rough estimate)
refractive index :1.6110 (estimate)
storage temp. :Keep in dark place,Inert atmosphere,Room temperature
solubility :Prepare the solution immediately before use. Dissolve 0.25 g in a mixture of 1 volume of methanol R and 3 volumes of methylene chloride R and dilute to 10 mL with the same mixture of solvents. The solution is clear (2.2.1) and not more intensely coloured than reference solution BY6 (2.2.2, Method II).
form :Solid
pka :pKa 7(t=20.0) (Uncertain)
color :White to Off-White
Water Solubility :<0.01 g/100 mL at 21 ºC
λmax :276nm(lit.)
Merck :14,7985
BRN :219864
BCS Class :2 (CLogP), 4 (LogP),3
Stability :Stable, but light sensitive. Combustible. Incompatible with strong oxidizing agents.
CAS DataBase Reference :58-14-0(CAS DataBase Reference)
IARC :3 (Vol. 13, Sup 7) 1987
NIST Chemistry Reference :Pyrimethamine(58-14-0)
EPA Substance Registry System :Pyrimethamine (58-14-0)

Safety Information

Symbol(GHS): GHS hazard pictograms
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning GHS hazard pictograms P264, P270, P301+P312, P330, P501
Precautionary statements:
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P501 Dispose of contents/container to..…

Description

Pyrimethamine is an antiprotozoal agent that is primarily active against P. falciparum, inhibiting the protozoal enzyme dihydrofolate reductase (DHFR). By blocking DHFR activity, pyrimethamine prevents the production of tetrahydrofolic acid, an essential coenzyme involved in DNA and RNA synthesis. In in vivo antimalarial mouse models, pyrimethamine displays a prophylactic effect at an ED50 value of 0.5 mg/kg. Sulphonamides act synergistically with pyrimethamine by arresting production of dihydrofolic acid, resulting in the sequential blockade of the folate pathway of protozoa. Pyrimethamine has also been found to limit the expression of the superoxide dismutase 1 gene, a protein involved in amyotrophic lateral sclerosis.

Related product price