ATSDR - Toxic Substances - Diisopropyl Methylphosphonate (DIMP)
Skip directly to search Skip directly to A to Z list Skip directly to site content Skip directly to page options

Diisopropyl Methylphosphonate (DIMP)

CAS ID #: 1445-75-6

Affected Organ Systems: Hematological (Blood Forming)

Cancer Classification: EPA: Not classifiable as to human carcinogenicity. IARC: Not evaluated. NTP: Not evaluated

Please contact NTP, IARC, or EPA’s IRIS Hotline with questions on cancer and cancer classification.

Chemical Classification: None

Summary: Diisopropyl methylphosphonate is a chemical by-product resulting from the manufacture of Sarin (GB), a nerve gas that was produced by the Army in the 1950s. A chemical by-product is a chemical that is formed while making another substance. Sarin was produced and stored only in the Rocky Mountain Arsenal outside of Denver, Colorado. Production of Sarin in the United States was discontinued in 1957. Diisopropyl methylphosphonate is not known to occur naturally in the environment. It is not likely to be produced in the United States in the future because of the signing of a chemical treaty that bans the use, production, and stockpiling of poison gases. Diisopropyl methylphosphonate is a colorless liquid. Other names for it are DIMP, diisopropyl methane-phosphonate, phosphonic acid, and methyl-bis-(1-methylethyl)ester.

Community Members 

Community Members
  • ToxFAQs

    Fact sheet that answers the most frequently asked questions about a contaminant and its health effects.

  • Public Health Statement

    Summary about a hazardous substance taken from Chapter One of its respective ATSDR Toxicological Profile.

  • Toxicological and Health Professionals 

    Toxicological and Health Professionals
  • Toxicological Profile

    Succinctly characterizes the toxicologic and adverse health effects information for a hazardous substance.

  • Minimal Risk Levels (MRL)

    The MRL is an estimate of the daily human exposure to a hazardous substance that is likely to be without appreciable risk of adverse, non-cancer health effects over a specified duration of exposure. The information in this MRL serves as a screening tool to help public health professionals decide where to look more closely to evaluate possible risk of adverse health effects from human exposure.

  • Top of Page

    Contact Us:
    • Agency for Toxic Substances and Disease Registry
      4770 Buford Hwy NE
      Atlanta, GA 30341
    • 800-CDC-INFO
      TTY: (888) 232-6348
    • New Hours of Operation
      8am-8pm ET/Monday-Friday
      Closed Holidays
      Contact CDC-INFO The U.S. Government's Official Web PortalDepartment of Health and Human Services
    Agency for Toxic Substances and Disease Registry, 4770 Buford Hwy NE, Atlanta, GA 30341
    Contact CDC: 800-232-4636 / TTY: 888-232-6348

    A-Z Index

    1. A
    2. B
    3. C
    4. D
    5. E
    6. F
    7. G
    8. H
    9. I
    10. J
    11. K
    12. L
    13. M
    14. N
    15. O
    16. P
    17. Q
    18. R
    19. S
    20. T
    21. U
    22. V
    23. W
    24. X
    25. Y
    26. Z
    27. #