atorvastatin calcium manufacturers 134523-03-8 CAS NO.134523-03-8

Name: atorvastatin calcium manufacturers 134523-03-8
SKU: 134523-03-8
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Atorvastatin calcium

CAS No: 134523-03-8
Purity: 99%
color: white

TEST	STANDARD	RESULT
Appearance:	white or almost white powder, slightly hygroscopic, ordorless	Confirms
Appearance:	Very solutable in acetonitrile or chloroform, Soluble in Water, very soluble and practically insolutable in ethyl ether	Confirms
Identification	(1) IR	Conforms
Identification	(2) HPLC	Conforms
Water	NMT 5.0%	0.6%
Residue on ignition	NMT 0.2%	0.1%
Methyl benzenesulfonate	NMT 0.1%	undetected
Toluene	NMT 890ppm (ICH)	102ppm
Chromatographic purity	(1) Laudanosine: NMT 0.5% (2) Other individual impurities: NMT 1.0% (3) Total Impurities: NMT 3.5%	0.01% 0.38% 1.3%
Isomer Ratio	Trans-Trans Isomer: 5%-6.5%	5.7%
	Cis-Trans Isomer: 34.5%-38.5%	36%
	Cis-Cis Isomer: 55%-60%	58.2%
Assay	96%-102% (C65H82N2O18S2 on anhydrous basis)	100.2%
Residue Solvents	(1) Dichloromethane: NMT 600ppm (2) Acctonitrile: NMT 410ppm (3) Ethyl ether: NMT 5000ppm	Undetected Undetected 1739ppm
Result	Confirms to USP34