Mass Spectrometry

4-APDB (hydrochloride)
Cat n°: 9001891

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4-Bromoamphetamine (hydrochloride)
Cat n°: 9001850

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4-chloro-?-Cyanocinnamic Acid
Cat n°: 9000981

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4-Chloroamphetamine (hydrochloride)
Cat n°: 9001856

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4-Ethylmethcathinone (hydrochloride)
Cat n°: 9001078

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4-Fluoroisocathinone (hydrochloride)
Cat n°: 9001146

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4-Fluoromethamphetamine (hydrochloride)
Cat n°: 9001070

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4-Fluoromethcathinone (hydrochloride) (exempt preparation)
Cat n°: 16054

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4-Fluoromethcathinone metabolite (hydrochloride) ((±)-Pseudoephedrine stereochemistry)
Cat n°: 9001433

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4-Fluoropentylindole
Cat n°: 15453

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4-hydroxy Nonenal Mercapturic Acid-d₃
Cat n°: 9000348

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4-Iodoamphetamine (hydrochloride)
Cat n°: 9001853

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4-methoxy DMT
Cat n°: 9000895

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4-methoxy PV9 (hydrochloride)
Cat n°: 15064

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4-methoxy-?-Pyrrolidinopropiophenone (tosylate)
Cat n°: 10449

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4-methyl Erlotinib
Cat n°: 9001510

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4-methyl-?-Ethyltryptamine
Cat n°: 13886

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4-methyl-?-Pyrrolidinobutiophenone (hydrochloride)
Cat n°: 9001190

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4-Methylumbelliferyl-?-L-Iduronide (free acid)
Cat n°: 19543

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4-Methylumbelliferyl-?-D-N,N’,N”-Triacetylchitotrioside
Cat n°: 19715

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4-Methylbuphedrone (hydrochloride)
Cat n°: 11486

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4-Methylethcathinone (hydrochloride)
Cat n°: 9001069

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4-Methylmethamphetamine (hydrochloride)
Cat n°: 9001345

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4-oxo-2-Nonenal-d₃
Cat n°: 10004174

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4-pentynoyl-Coenzyme A (trifluoroacetate salt)
Cat n°: 10547

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4-acetoxy EiPT (fumarate)
Cat n°: 36821

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4-Anilino-1-Boc-piperidine
Cat n°: 29119

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4-ANPP-d₅ (exempt preparation)
Cat n°: 36781

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4-APB (hydrochloride)
Cat n°: 14281

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4-bromo-?-Pyrrolidinovalerophenone (hydrochloride)
Cat n°: 19329

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4-chloro Modafinil
Cat n°: 37091

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4-chloro Pentedrone (hydrochloride)
Cat n°: 19383

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4-chloro-N-Isopropylcathinone (hydrochloride)
Cat n°: 19392

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4-chloro-N,N-Dimethylcathinone (hydrochloride)
Cat n°: 24432

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4-Chloromethamphetamine (hydrochloride)
Cat n°: 9002185

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4-CPPC
Cat n°: 30068

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4-cyano ADB-BUTINACA
Cat n°: 26506

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4-cyano CUMYL-BUTINACA metabolite 10
Cat n°: 26399

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4-cyano CUMYL-BUTINACA
Cat n°: 20194

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4-cyano CUMYL-BUTINACA (CRM)
Cat n°: 30774

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Mass Spectrometry

4-APDB (hydrochloride)

4-Bromoamphetamine (hydrochloride)

4-chloro-?-Cyanocinnamic Acid

4-Chloroamphetamine (hydrochloride)

4-Ethylmethcathinone (hydrochloride)

4-Fluoroisocathinone (hydrochloride)

4-Fluoromethamphetamine (hydrochloride)

4-Fluoromethcathinone (hydrochloride) (exempt preparation)

4-Fluoromethcathinone metabolite (hydrochloride) ((±)-Pseudoephedrine stereochemistry)

4-Fluoropentylindole

4-hydroxy Nonenal Mercapturic Acid-d3

4-Iodoamphetamine (hydrochloride)

4-methoxy DMT

4-methoxy PV9 (hydrochloride)

4-methoxy-?-Pyrrolidinopropiophenone (tosylate)

4-methyl Erlotinib

4-methyl-?-Ethyltryptamine

4-methyl-?-Pyrrolidinobutiophenone (hydrochloride)

4-Methylumbelliferyl-?-L-Iduronide (free acid)

4-Methylumbelliferyl-?-D-N,N’,N”-Triacetylchitotrioside

4-Methylbuphedrone (hydrochloride)

4-Methylethcathinone (hydrochloride)

4-Methylmethamphetamine (hydrochloride)

4-oxo-2-Nonenal-d3

4-pentynoyl-Coenzyme A (trifluoroacetate salt)

4-acetoxy EiPT (fumarate)

4-Anilino-1-Boc-piperidine

4-ANPP-d5 (exempt preparation)

4-APB (hydrochloride)

4-bromo-?-Pyrrolidinovalerophenone (hydrochloride)

4-chloro Modafinil

4-chloro Pentedrone (hydrochloride)

4-chloro-N-Isopropylcathinone (hydrochloride)

4-chloro-N,N-Dimethylcathinone (hydrochloride)

4-Chloromethamphetamine (hydrochloride)

4-CPPC

4-cyano ADB-BUTINACA

4-cyano CUMYL-BUTINACA metabolite 10

4-cyano CUMYL-BUTINACA

4-cyano CUMYL-BUTINACA (CRM)

4-hydroxy Nonenal Mercapturic Acid-d₃

4-oxo-2-Nonenal-d₃

4-ANPP-d₅ (exempt preparation)