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Catnumber Casnumber Compound Category
CS-EB-00065 22407-20-1 Allopurinol Related Compound B (R02700) USP Standards
CS-EB-00066 27511-79-1 Allopurinol Related Compound A (I0M517) USP Standards
CS-EB-00067 1346604-13-4 Allopurinol Related Compound C (R00781) USP Standards
CS-EB-00068 6994-25-8 Allopurinol Related Compound D (F0G085) USP Standards
CS-EB-00069 31055-19-3 Allopurinol Related Compound E (R014H0) USP Standards
CS-EB-00070 321571-07-7 Allopurinol Related Compound F (R028V0) USP Standards
CS-EG-00058 22407-20-1 Allopurinol impurity B (A0350020) EP Standards
CS-EG-00059 1346604-13-4 Allopurinol impurity C (A0350030) EP Standards
CS-EG-00060 6994-25-8 Allopurinol impurity D (A0350040) EP Standards
CS-EG-00061 31055-19-3 Allopurinol impurity E (A0350050) EP Standards
CS-EG-00057 NA Allopurinol impurity A (A0350010) EP Standards
CS-T-66391 43024-67-5 7-Aminopyrazolo[1,5-a]pyrimidine-3,6-dicarboxylic Acid 3,6-Diethyl Ester Impurities
CS-O-03344 1217036-71-9 Oxipurinol 13C 15N2 Stable Isotopes
CS-T-50319 34397-00-7 7N-[1-(2-Carboxy)ethyl]allopurinol Impurities
CS-O-02049 2465-59-0 Oxipurinol Metabolites
CS-O-07146 315-30-0 Allopurinol API Standards
CS-O-03343 315-30-0 (Unlabeled) Allopurinol 13C 15N2 Stable Isotopes
CS-O-03126 916979-34-5 Allopurinol D2 Stable Isotopes
CS-O-07140 27511-79-1 Allopurinol EP Impurity A Impurities
CS-O-07143 6994-25-8 Allopurinol EP Impurity D Impurities
CS-O-15455 315-30-0 (Unlabeled) Allopurinol 13C4 Stable Isotopes
CS-T-13616 52632-17-4 (E)-3-[(2-Cyano-3-ethoxy-3-oxo-1-propenyl)amino]-1H-pyrazole-4-carboxylic Acid Ethyl Ester Impurities
CS-T-13617 321571-07-7 (E/Z)-3-[(2-Cyano-3-ethoxy-3-oxo-1-propenyl)amino]-1H-Pyrazole-4-carboxylic Acid Ethyl Ester Impurities
CS-ER-00059 1346604-13-4 Allopurinol Related Compound C(Secondary Standards traceble to USP) Secondary Standards traceble to USP
CS-ER-00060 6994-25-8 Allopurinol Related Compound D(Secondary Standards traceble to USP) Secondary Standards traceble to USP
CS-ER-00061 31055-19-3 Allopurinol Related Compound E(Secondary Standards traceble to USP) Secondary Standards traceble to USP
CS-ER-00062 321571-07-7 Allopurinol Related Compound F(Secondary Standards traceble to USP) Secondary Standards traceble to USP
CS-ER-02305 22407-20-1 Allopurinol impurity B(Secondary Standards traceble to EP) Secondary Standards traceble to EP
CS-ER-02306 1346604-13-4 Allopurinol impurity C(Secondary Standards traceble to EP) Secondary Standards traceble to EP
CS-ER-02307 6994-25-8 Allopurinol impurity D(Secondary Standards traceble to EP) Secondary Standards traceble to EP
CS-ER-02308 31055-19-3 Allopurinol impurity E(Secondary Standards traceble to EP) Secondary Standards traceble to EP
CS-ER-02359 NA Allopurinol impurity A(Secondary Standards traceble to EP) Secondary Standards traceble to EP
CS-ER-00057 22407-20-1 Allopurinol Related Compound B(Secondary Standards traceble to USP) Secondary Standards traceble to USP
CS-ER-00058 27511-79-1 Allopurinol Related Compound A(Secondary Standards traceble to USP) Secondary Standards traceble to USP