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Dihydrotestosterone-[13c3](standard solution)

1,25-Dihydroxyvitamin d3-[d3](standard solution)

(+/-)-Normetanephrine-a,b,b-[d3] hydrochlroide(standard solution)

Vitamin d3-[d3](standard solution)

Efavirenz-[13c6]

Aldicarb sulfone-[13c2,d3]

Aldicarb sulfoxide-[13c2,d3]

Aldicarb-[13c2,d3]

Anthranilic acid-[13c6]