Prop 65 Notices

Prop 65 notice 2019-01432: MedChemExpress LLC

Maria Elizabeth Romero filed this California Prop 65 60-day notice on July 26, 2019. It names MedChemExpress LLC and alleges exposure to 1,1,1,2-Tetrachloroethane from All products sold by MedChemExpress via the referenced Web site which contain a Listed Chemical in a purity of 10 percent or higher, whether in solid form or in solution.

The violations below are alleged in a 60-day notice. They are not proven. A 60-day notice is not a lawsuit and not a finding of liability.

AG number
2019-01432
Date filed
Noticing party
Plaintiff attorney
Benjamin D. Weston
Alleged violators
Chemicals
Source or product
All products sold by MedChemExpress via the referenced Web site which contain a Listed Chemical in a purity of 10 percent or higher, whether in solid form or in solution.
Official notice
Notice PDF at oag.ca.gov
Official record
Attorney General record for 2019-01432
Last checked
November 11, 2026

What happened after this notice

Outcomes for this notice have not been checked yet. A settlement is not an admission and not a finding that anyone broke the law.

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Other notices naming MedChemExpress LLC

  • MedChemExpress LLC and 2 more: Acetazolamide in All products offered for sale by MedChemExpress LLC, MedChemExpress USA, and/or Shanghai Haoyuan Chemexpress Co., Ltd. on the Web site at https://www.medchemexpress.com whose primary component is a chemical listed on Attachment B to the Notice.
    Notice 2020-00410, filed 2020-02-19 by Maria Elizabeth Romero
  • MedChemExpress LLC and 2 more: All-trans retinoic acid in Chemical products which contain Retinoic Acid
    Notice 2019-02266, filed 2019-12-06 by Maria Elizabeth Romero

Recent notices filed by Maria Elizabeth Romero

  • ChemScene Limited Liability Company: A-alpha-C (2-Amino-9H-pyrido [2,3-b]indole) in All products offered for sale by ChemScene Limited Liability Company on the Web site at https://www.chemscene.com whose primary component is a chemical listed on Attachment B to the Notice.
    Notice 2020-00413, filed 2020-02-19 by Maria Elizabeth Romero
  • Thermo Fisher Scientific Inc., d.b.a. Alfa Aesar ("Alfa Aesar"): 1-Amino-2,4-dibromoanthraquinone in All products offered for sale by Alfa Aesar on the Web site at https://www.alfa.com whose primary component is a chemical listed on Attachment B to the Notice.
    Notice 2020-00170, filed 2020-01-24 by Maria Elizabeth Romero
  • LGC Standards Inc. and 3 more: A-alpha-C (2-Amino-9H-pyrido [2,3-b]indole) in All products offered for sale by LGC on the Web site at https://us.lgcstandards.com whose primary component is a chemical listed on Attachment B to the Notice.
    Notice 2020-00120, filed 2020-01-17 by Maria Elizabeth Romero
  • Adooq Bioscience, LLC: Acetazolamide in All products offered for sale by Adooq on the Web site at https://www.adooq.com whose primary component is a chemical listed on Attachment B of the Notice.
    Notice 2020-00119, filed 2020-01-17 by Maria Elizabeth Romero
  • BioVision, Inc.: Actinomycin D in All products offered for sale by BioVision, Inc. on the Web site at https://www.biovision.com whose primary component is a chemical listed on Attachment B to the Notice.
    Notice 2020-00118, filed 2020-01-17 by Maria Elizabeth Romero