tracking dye / Orange G
hoolwerf at geocities.com
Thu Sep 21 13:11:04 EST 2000
On Thursday September 21 2000, Sophie Launey wrote to All:
SL> dye and came across Orange G dye. However, I cannot find
SL> about possible toxicity (and subsequent appropriate handling and
SL> disposal) for this dye (the only info I've found is "The
SL> toxicological properties of this material have not been
I use Orange G from Sigma and the label on the bottle only says:
On the Sigma web site i found the complete Material Safety Data Sheet
and i will send you this info by e-mail because it's to large to post
A small exerpt:
SECTION 3. - - - - - - - - - - HAZARDS IDENTIFICATION - - - - - - - - -
LABEL PRECAUTIONARY STATEMENTS
IRRITATING TO EYES, RESPIRATORY SYSTEM AND SKIN.
IN CASE OF CONTACT WITH EYES, RINSE IMMEDIATELY WITH PLENTY OF
WATER AND SEEK MEDICAL ADVICE.
WEAR SUITABLE PROTECTIVE CLOTHING.
SECTION 11. - - - - - - - - - TOXICOLOGICAL INFORMATION - - - - - - - -
MAY BE HARMFUL BY INHALATION, INGESTION, OR SKIN ABSORPTION.
CAUSES EYE AND SKIN IRRITATION.
MATERIAL IS IRRITATING TO MUCOUS MEMBRANES AND UPPER
TO THE BEST OF OUR KNOWLEDGE, THE CHEMICAL, PHYSICAL, AND
TOXICOLOGICAL PROPERTIES HAVE NOT BEEN THOROUGHLY INVESTIGATED.
SL> I wonder if anyone is using Orange G, and if so how do they deal
Yes, we use it for agarose gels.
SL> Or if there are other alternate tracking dyes that would migrate
SL> faster than the bands of interest and leave no residue?
Not that i know off. And imho all dyes are things to be carefull with
regards, Jan Hoolwerf
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