Phenylbutazone CAS NO. 50-33-9 CAS NO.50-33-9

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99.0%-101.0%(25.00-500.00)Metric Ton19.80/Metric Ton25.00USD99.0%-101.0%(500.00-1000.00)Metric Ton18.30/Metric Ton500.00USD99.0%-101.0%(1000.00-5000.00)Metric Ton17.60/Metric Ton1000.00USD

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1,Product:Phenylbutazone

2,CAS#50-33-9
3,Appearance:White off-white crystalline powder
4,Antipyretic analgesic

Product information

Product	Phenylbutazone
Synonyms	1,2-Diphenyl-3,5-dioxo-4-butylpyrazolidine;1,2-Diphenyl-3,5-dioxo-4-n-butylpyrazolidine;
	1,2-Diphenyl-4-butyl-3,5-pyrazolidinedione;3,5-Dioxo-1,2-diphenyl-4-n-butylpyrazolidine
Cas	50-33-9
EINECS	200-029-0
Appearance	White off-white crystalline powder

Specification

Items	Specification	Results
Appearance	White crystalline powder	Confirms
Identification	IR absorption & Ultraviolet absorption	Conforms
Melting point, °C	104.0~107.0	105.0~107.0
Assay ,%	≤ 98	100.2
Heavy metals (as Pb), %	≤ 0.001	Confirms
Loss on drying, %	≤ 0.5	0.1
Residue on ignition, %	≤ 0.1	0.03
Chloride (Cl), %	≤ 0.1	0.07
Sulfate, %	≤ 0.1	0.06
Microbial limit tests
Bacteriums, cfu/g	≤ 1000	15
Yeasts & Molds, cfu/g	≤ 100	15
E.Coli	Negative	Confirms

Application

Phenylbutazone is indicated in the treatment of rheumatic rheumatoid arthritis, gout, etc.