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Meldola's blue

CAS No.
7057-57-0
Chemical Name:
Meldola's blue
Synonyms
CI 51175;meldola’s;NEW BLUE R;CI NO 51175;MELDOLA BLUE;BASIC BLUE 6;FAST BLUE 3R;BENGAL BLUE R;PHENYLENE BLUE;Meldola's blue
CBNumber:
CB9719875
Molecular Formula:
C18H15ClN2O
Molecular Weight:
310.78
MDL Number:
MFCD00012113
MOL File:
7057-57-0.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-04-24 14:58:40
Product description Number Pack Size Price
Meldola's blue FM13494 2g $240.26
Meldola's blue FM13494 5g $384.3
Meldola's blue FM13494 10g $576.5
Meldola's blue FM13494 25g $756.25
Meldola's blue FM13494 50g $962.5
More product size

Meldola's blue Properties

storage temp. Refrigerator
solubility DMSO (Slightly), Methanol (Slightly), Water (Slightly)
form Solid
color Dark Purple to Black
Stability Stable. Incompatible with strong oxidizing agents.
EWG's Food Scores 1-3
FDA UNII CP2ST8ED1O
EPA Substance Registry System Benzo[a]phenoxazin-7-ium, 9-(dimethylamino)-, chloride, compd. with zinc chloride (ZnCl2) (7057-57-0)

SAFETY

Risk and Safety Statements

WGK Germany  3
TSCA  TSCA listed

Meldola's blue price More Price(21)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Biosynth FM13494 Meldola's blue 7057-57-0 2g $240.26 2026-06-04 Buy
Biosynth FM13494 Meldola's blue 7057-57-0 5g $384.3 2026-06-04 Buy
Biosynth FM13494 Meldola's blue 7057-57-0 10g $576.5 2026-06-04 Buy
Biosynth FM13494 Meldola's blue 7057-57-0 25g $756.25 2026-06-04 Buy
Biosynth FM13494 Meldola's blue 7057-57-0 50g $962.5 2026-06-04 Buy
Product number Packaging Price Buy
FM13494 2g $240.26 Buy
FM13494 5g $384.3 Buy
FM13494 10g $576.5 Buy
FM13494 25g $756.25 Buy
FM13494 50g $962.5 Buy

Meldola's blue Chemical Properties,Uses,Production

Description

Meldola's Blue [7057-57-0], the condensa tion product of nitrosodimethylaniline and naphthol, was described in 1879; it is the old est industrially produced oxazine dye. In 1928, Kr¨ anzlein, Greune, and Thiele discovered the group of dioxazine dyes by reaction of aromatic amines with chloranil followed by cyclization, the triphendioxazine base structure itself being known since 1890.

Chemical Properties

dark green powder

Uses

Meldola's blue is a biosensor for the measurement of lactate in serum has been developed, which is based on a screen-printed carbon electrode, modified with Meldola's Blue-Reinecke Salt (MBRS-SPCE), coated with the enzyme lactate dehydrogenase NAD+ dependent (from Porcine heart), and NAD+. A cellulose acetate layer was deposited on the top of the device to act as a permselective membrane.

Uses

A dye used in biosensors

Uses

A biosensor for the measurement of lactate in serum has been developed, which is based on a screen-printed carbon electrode, modified with Meldola''s Blue-Reinecke Salt (MBRS-SPCE), coated with the enzyme lactate dehydrogenase NAD+ dependent (from Porcine heart), and NAD+. A cellulose acetate layer was deposited on the top of the device to act as a permselective membrane. This compound is suitable for lactate dehydrogenase (LDH) related research.

Meldola's blue Preparation Products And Raw materials

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Capot Chemical Co.,Ltd.
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Shanghai Aladdin Bio-Chem Technology Co.,LTD 400-6206333 13167063860 anhua.mao@aladdin-e.com China 29975 65
Finetech Industry Limited 027-87465837 19945049750 sales@finetechnology-ind.com China 9345 58
meldola’s 8-DIMETHYLAMINO-2,3-BENZOPHENOXAZINE HEMI(ZINC CHLORIDE) SALT MELDOLA BLUE LABOTEST-BB LT00452080 8-DIMETHYLAMINO-2,3-BENZOPHENOXAZINE*HEM I(ZINC CHLO Meldola''s blue (C.I. 51175) 9-(dimethylamino)benzo[a]phenazin-7-ium zinc(II) chloride bis(2-(o-aminophenylthiomethylthio)anilino)methane 8-Dimethylamino-2,3-benzophenoxazine hemi(zinc chloride) salt Meldolas Blue C.I. No. 51175 65% Dye Content 9-(dimethylamino)benzo[a]phenazin-7-ium chloride, compound with zinc chloride C.I. Basic Blue 6 8-Dimethylamino-2,3-benzophenoxazine hemi(zinc chloride) salt, Basic Blue 6, Fast blue 3R, Naphthol blue R BENGAL BLUE R BASIC BLUE 6 FAST BLUE 3R CI 51175 CI NO 51175 PHENYLENE BLUE NAPHTHOL BLUE R NEW BLUE R benzo[a]phenoxazin-7-ium,9-(dimethylamino)-,chloride,compd.withzincchlori Meldolas Blue extrapure Meldola's blue Medola's blue (C.I. 51175) 7057-57-0 C18H15N2OCl12ZnCl2 C18H15Cl3N2OZn C18H15ClN2O05Cl2Zn C18H15ClN2OxZnCl2 Amines Aromatics Heterocycles