What is CPCA Score for “N-nitroso of 3-Amino-1,2,4-triazole"

What is CPCA Score for “N-nitroso of 3-Amino-1,2,4-triazole".

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The potency categorisation approach (CPCA) does not apply to N-nitrosamines where the N-nitroso group is attached to a nitrogen within a hetero aromatic ring (e.g., nitrosated indole).
ref.to:
Carcinogenic Potency Categorisation Approach for Nnitrosamines

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Can you please provide a bit more context with the question? Thanks

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This nitrosamine impurity is coming from “3 Amino 1,2,4-Triazole” and it does not follow CPCA rules to assign an exact category. My question is how we assign CPCA category.

Thanks, Dinkar. I think this post should help you with the limit definition and justification. The same framework was used to develop CPCA.

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Thank you so much, sir, for your insightful feedback. It is really beneficial to our pharmaceutical society as well as to myself.