Methyl red
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Post Date:
Aug 26,2017
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Expiry Date:
Feb 22,2018
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Detailed Description:
Cas No. :493-52-7
Molecular Formula:C15H15O2N3
Molecular Weight:269.30
PH indicator range: 4.5（red）~6.2（yellow）
Residue on ignition (as sulfate): 0.2%max
Mass-absorption coefficient λ1（PH4.5）,L/(cm·g): 130min
λ2（PH6.2）,L/(cm·g): 70min
Maximum absorption wavelength λ1（PH4.5）,nm: 523~528
λ2（PH6.2）,nm: 427~437
Loss on drying: 1.0%max
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CAS Registry Number:
493-52-7
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Synonyms:
;C.I. Acid Red 2;C.I. Acid Red 2 (8CI);O-Methyl red;CI NO 13020;BROMOCRESOL GREEN-METHYL RED;BROMOCRESOL GREEN-METHYL RED ETHANOL;BROMOCRESOL GREEN/METHYL RED, MIXED INDICATOR;BROMOCRESOL GREEN/METHYL RED, MIX INDICATOR FOR ALKALINITY;METHYL RED INDICATOR;METHYL RED MIXED SOLUTION;2-{(E)-[4-(dimethylamino)phenyl]diazenyl}benzoic acid;5-(dimethylamino)-2-[(E)-phenyldiazenyl]benzoic acid;Methyl red;
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Molecular Formula:
C15H15N3O2
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Molecular Weight:
269.2985
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Molecular Structure:
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Hazard Symbols:
Xn:Harmful;
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Risk Codes:
R10:;
R20/21/22:;
R68:;
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Safety Description:
S36/37:;
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