Recent Update: Limited time only! Get 30% off for samples that fail the test with bulk orders (≥ 4 samples)! Learn more.

Theoretical oxygen demand (ThOD) calculator


For the formula: CcHhClclNnNanaOoPpSs, enter the number of each atom below.

Reference

The calculation of ThOD on this page is based on the guideline OECD 301 (page 60):
OECD (1992), Test No. 301: Ready Biodegradability, OECD Guidelines for the Testing of Chemicals, Section 3, OECD Publishing, Paris.