NILE CHEMICALS

ROSE BENGAL

Structural formula

Rose Bengal

C.I. number 45440
C.A.S no. 632-69-9
Appearance Dark Red Powder
Absorptivity 1% ,1 cm water + 1 ml Na2CO3 sol

at lamda max 541.0 nm

800
Empirical formula C20H2O5I4Cl4Na2
Loss on drying 4.63 %

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