QCS reference standards
Reference standards published in the QCS catalogue, listed with CAS number, molecular formula, molecular weight and structure where available.
38,635 products · 644 pages
QCS products
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3-Methyl-1-hexen-5-yn-3-ol
IN STOCKRS-U211O3C -
1-(2,4-Dichloro-3-Methylphenyl)Ethanone
IN STOCKRS-U211O3F -
3,3-Dibromopropenoic Acid
IN STOCKRS-U211O3H -
4-[1,2,4]Triazol-1-Ylmethyl-Benzoic Acid
IN STOCKRS-U211O3K -
Tributyl Tetrathiophosphate (controlled substance)
IN STOCKRS-U211O3Y -
2-acetylhydrazine-1-carbothioic S-acid
IN STOCKRS-U211O44 -
1,4-ditosylpiperazine
CUSTOM SYNTHESISRS-U211O4G -
4-(2-((3,3-diphenylpropyl)amino)propyl)phenol
IN STOCKRS-U211O4M -
methyl 2-methyl-3-oxopentanoate
IN STOCKRS-U211O4R -
Methyl 2-Amino-3-Hydroxybenzoate
IN STOCKRS-U211O4Y -
Salcaprozate Sodium Impurity 18
IN STOCKRS-U211O55 -
Ruxolitinib Impurity 151
CUSTOM SYNTHESISRS-U211O59 -
8-Chlorooctanoic Acid
IN STOCKRS-U211O5B -
3α,7α-Dihydroxycoprostanic Acid
BACK ORDERRS-U211O5D -
2,3-Dichloro-5-methylbenzoic acid
IN STOCKRS-U211O5F -
p-Vinylphenyltris (trimethylsiloxy)silane
BACK ORDERRS-U211O5Q -
Phenyl Formate
IN STOCKRS-U211O5R -
1-(Pyridin-2-Yl)Ethanol
IN STOCKRS-U211O5S -
4-bromo-1,2-oxathiolane 2,2-dioxide
IN STOCKRS-U211O5V -
Bisulflufen
BACK ORDERRS-U211O5Y -
2-(Methoxymethyl)Tetrahydrofuran
IN STOCKRS-U211O62 -
Pimavanserin Impurity 34
CUSTOM SYNTHESISRS-U211O66 -
Ethane Methanesulfonate
IN STOCKRS-U211O6A -
Mebeverine Impurity 8
IN STOCKRS-U211O6F -
2-((1,1-Dioxido-2,3-Dihydrothiophen-3-Yl)Amino)Acetic
IN STOCKRS-U211O6O -
Methyl 2-hydroxy-β-oxobenzenepropanoate
IN STOCKRS-U211O6T -
4-Benzoyl-3-Hydroxyphenyl Methacrylate
IN STOCKRS-U211O6U -
Rac-Binap Mono-Phosphine Oxide
BACK ORDERRS-U211O6W -
(E)-Methyl 3-(Dimethylamino)Acrylate
IN STOCKRS-U211O73 -
2-Chloro Cyclobutanone
IN STOCKRS-U211O74 -
di(piperidin-4-yl) carbonate
IN STOCKRS-U211O7A -
2-Chloro-4-Fluoro-1-Nitrobenzene
IN STOCKRS-U211O7F -
2,5-Dichloro-4-methylbenzoic acid
IN STOCKRS-U211O7P -
H2DCFDA succinimidyl ester
CUSTOM SYNTHESISRS-U211O7W -
Roxadustat Impurity 190
IN STOCKRS-U211O7Z -
(2R,3S,5R)-5-Chloro-2-(((4-Chlorobenzoyl)Oxy)Methyl)Te
BACK ORDERRS-U211O84 -
3-Fluoro-4-(Trifluoromethyl)Phenol
IN STOCKRS-U211O87 -
Ruxolitinib Impurity 132
CUSTOM SYNTHESISRS-U211O8B -
Ethyl 2-Phenylacrylate
IN STOCKRS-U211O8C -
α-Chlorobenzenemethanol
CUSTOM SYNTHESISRS-U211O8K -
Ethyl (2-hydroxybenzoyl)acetate
IN STOCKRS-U211O8L -
(Z)-2-Bromo-3-Methyl-2-Butenedioicacid
IN STOCKRS-U211O8N -
3,5-Dichloro-2-Hydroxybenzene-1-Sulfonyl Chloride
IN STOCKRS-U211O8O -
neopentyl 4-methylbenzenesulfonate
IN STOCKRS-U211O8Q -
N-((4-Amino-2-Methylpyrimidin-5-Yl)Methyl)Acetamide
IN STOCKRS-U211O8W -
1,2-Dibromo-4-Fluorobenzene
IN STOCKRS-U211O8X -
Laminaripentaose
CUSTOM SYNTHESISRS-U211O90 -
3-chloro-N,N-dimethylbenzamide
IN STOCKRS-U211O96 -
(E)/(Z)-2,3-Dibromopropenoic Acid
IN STOCKRS-U211O9J -
Metaxalone Impurity 11
IN STOCKRS-U211O9L -
Laminaritetraose
BACK ORDERRS-U211OA0 -
1,3-Bis(2-Hydroxyethyl)-5,5-Dimethylhydantoin
IN STOCKRS-U211OA7 -
Diisooctyl Sebacate
BACK ORDERRS-U211OAD -
Propylsulfamic Acid
IN STOCKRS-U211OAF -
Crisaborole Impurity 72
IN STOCKRS-U211OAI -
ethyl 2-(4-(2-hydroxyethyl)piperazin-1-yl)ethane-1-sul
IN STOCKRS-U211OAM -
(7Z,10Z)-Hexadeca-7,10-Dienoic acid
IN STOCKRS-U211OAR -
2-methylfuran-3-thiol
IN STOCKRS-U211OAW -
9-Oxabicyclo[6.1.0]Nonane
IN STOCKRS-U211OAX -
2H-pyran
IN STOCKRS-U211OAY
![Chemical structure of 4-[1,2,4]Triazol-1-Ylmethyl-Benzoic Acid](/structures/w4/DJXUEFGFCMIONN-UHFFFAOYSA-N.webp?v=9)
![Chemical structure of 9-Oxabicyclo[6.1.0]Nonane](/structures/w4/MELPJGOMEMRMPL-UHFFFAOYSA-N.webp?v=9)
38,635 products · 644 pages