Color Standards

Method: colorimetric with color-disk comparator 0.3 - 0.

Costein's LDS Test medium is recommended for identification of members of Enterobacteriaceae on the basis of lysine decarboxylase (LDC) and hydrogen sulphide (H2S) production. LDC-negative and H2S negative organisms show yellow colored growth e.

Coumarin 334 is a laser dye with an absorption maximum of 452 nm.

Coumarin 334 is a laser dye with an absorption maximum of 452 nm.

Suitable as a laser dye.

Suitable as a laser dye.

Suitable as a laser dye.

Suitable as a laser dye.

Suitable as a laser dye.

Suitable as a laser dye.

Suitable as a laser dye.

Synonyms: 2-Cresolsulfonephthalein 3',3''-Dimethylphenolsulfonephthalein Grade: indicator grade, Dye conte CAS No.: 1733-12-6 Molecular Formula: C21H18O5S Molecular Weight: 382.