CRESOL RED indicator , LABORATORY CHEMICALS, SPECIFICATION

NILE CHEMICALS

CRESOL RED

SPECIFICATION SHEET

CAS No.	1733-12-16
Chemical Formula	C₂₁H₁₈O₅S
Molecular Weight	382.43
Melting Point	290° c
Dye Content	~95%
Transition Range	pH 0.5 - pH 1.8 Pink to Yellow pH 7.2 - pH 8.8 Yellow to Purple
Absorptivity(pH 0.5)517 - 520 nm	1180 - 1230
Absorptivity(pH 2.5)432-436 nm	490-540
Absorptivity(pH 6.5)432 - 436 nm	490 - 540
Absorptivity(pH 8.5)571 - 574 nm	1000 - 1050
Loss On Drying (110° c.)	< 5%

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BRIEF MSDS

Hazards identification

Hazard description:- Not applicable
Information pertaining to particular dangers for man and environment:-Not applicable

Toxicological information

Acute toxicity:
Primary irritant effect:
on the skin: May cause irritation
on the eye: May cause irritation
Sensitization: No sensitizing effects known.

Transport information

Not a hazardous material for transportation.

DOT regulations:
Hazard class:             None
Land transport ADR/RID (cross-border)
ADR/RID class:                None
Maritime transport IMDG:
IMDG Class:               None
Air transport ICAO-TI and IATA-DGR:
ICAO/IATA Class:          None

OTHER INFORMATION

It must be recognised that the physical and chemical properties of any product may not be fully understood and that new, possibly hazardous products may arise from reactions between chemicals. The information given in this data sheet is based on our present knowledge and shall not constitute a guarantee for any specific product features and shall not establish a legally valid contractual relationship.

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