On April 1, 2026, Japan's Ministry of Health, Labour and Welfare issued an update notice, adding 2 confirmed CAS numbers to the list of newly announced chemical substances published after April 1, 2011.

2 confirmed links of CAS RNs were added to the Japan CSCL-Newly Announced Chemical Substances (notified by April 1,2011)

On December 17, 2025, Japan's Ministry of Health, Labour and Welfare issued an update notice, adding 32 confirmed CAS numbers to the list of newly announced chemical substances published after April 1, 2011.

34 confirmed links of CAS RNs were added to the Japan CSCL-Newly Announced Chemical Substances (notified by April 1,2011)

2 substances were added to the Japan CSCL-Newly Announced Chemical Substances (notified by April 1,2011)

A substance was added to the Japan CSCL-Newly Announced Chemical Substances (notified by April 1,2011)

57 substances were added to the Japan CSCL-Newly Announced Chemical Substances (notified by April 1,2011)

57 substance was added to the Japan CSCL-Newly Announced Chemical Substances (notified by April 1,2011)

164 substances were added to the Japan CSCL-Newly Announced Chemical Substances (notified by April 1,2011)

Update the Japan CSCL-Newly Announced Chemical Substances (notified by April 1,2011) to the latest version and add the Japanese name to it.

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