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ACID BLUE 1

CAS No.
20262-76-4
Chemical Name:
ACID BLUE 1
Synonyms
E131;CI 42770;ACID BLUE;CI NO 42090;CI NO 42045;ACID BLUE 3;ALPHAZURINE;XYLENE BLUE;PATENT BLUE;ERIOGLAUCINE
CBNumber:
CB8775636
Molecular Formula:
C27H31N2O7S2.Na
Molecular Weight:
582.67
MDL Number:
MFCD00012119
MOL File:
20262-76-4.mol
MSDS File:
SDS
Last updated:2026-01-13 11:27:05
Product description Number Pack Size Price
Patent blue V sodium salt for microscopy 21605 10g $42.6
Patent blue V sodium salt for microscopy 21605 25g $71.8
Acid Blue 3 Sodium Salt A1242 5g $17
Patent blue V sodium salt for microscopy 21605 100g $154
AcidBlue3SodiumSalt(~90%) A189810 25g $85
More product size

ACID BLUE 1 Properties

Melting point 290 °C (dec.)(lit.)
Boiling point 300℃[at 101 325 Pa]
Density 1.313[at 20℃]
vapor pressure 0Pa at 25℃
storage temp. -20°C Freezer
solubility DMSO (Sparingly), Methanol (Slightly)
form Crystalline Powder
Colour Index 42051
color Dark green-blue
Water Solubility 9.46-66.68g/L at 20-25℃
BRN 4108121
Major Application diagnostic assay manufacturing
hematology
histology
InChIKey PMLFOMWMYRKZRF-UHFFFAOYSA-M
SMILES [Na+].CCN(CC)c1ccc(cc1)\C(=C2/C=CC(\C=C2)=[N+](\CC)CC)c3cc(O)c(cc3S([O-])(=O)=O)S([O-])(=O)=O
LogP -3.62--2.31 at 24-25℃
FDA UNII 9ZL680Q9Z5
UNSPSC Code 12171500
NACRES NA.47

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H335-H319-H315
Precautionary statements  P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P
PPE Eyeshields, Gloves, type N95 (US)
WGK Germany  3
RTECS  BQ4550000
HS Code  34021200
Storage Class 11 - Combustible Solids
NFPA 704
0
1 0

ACID BLUE 1 price More Price(17)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 21605 Patent blue V sodium salt for microscopy 20262-76-4 10g $42.6 2026-03-19 Buy
Sigma-Aldrich 21605 Patent blue V sodium salt for microscopy 20262-76-4 25g $71.8 2026-03-19 Buy
TCI Chemical A1242 Acid Blue 3 Sodium Salt 20262-76-4 5g $17 2026-03-19 Buy
Sigma-Aldrich 21605 Patent blue V sodium salt for microscopy 20262-76-4 100g $154 2026-03-19 Buy
TRC A189810 AcidBlue3SodiumSalt(~90%) 20262-76-4 25g $85 2021-12-16 Buy
Product number Packaging Price Buy
21605 10g $42.6 Buy
21605 25g $71.8 Buy
A1242 5g $17 Buy
21605 100g $154 Buy
A189810 25g $85 Buy

ACID BLUE 1 Chemical Properties,Uses,Production

Chemical Properties

dark green-blue crystalline powder

Uses

Acid Blue 3 Sodium Salt is an synthetic food dye that is banned in Australia and the USA due to reoccurring allergic reactions.

Uses

lymphangiography and sentinel node biopsy as a dye to color lymph vessels

Uses

Patent blue V sodium salt is a pH dependent dye. It can also be used in technical or engineered material use for preparation of metal cation exchanged cellulose as new layer material for identification and separation of organic dyes.

Flammability and Explosibility

Not classified

Properties and Applications

bright blue. Soluble in water for blue, slightly soluble in ethanol for green light blue. The strong sulfuric acid for brown-olive yellow, yellow for deep diluted, and then to green. Dyes to join sodium hydroxide solution of the same color, heat into deep purple. And C.I. Acid blue 3the same chemical structure, different salt ions.

ACID BLUE 1 Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 129)Suppliers
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BOC Sciences
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SIMAGCHEM CORP
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PT CHEM GROUP LIMITED
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GIHI CHEMICALS CO.,LIMITED
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HANGZHOU LEAP CHEM CO., LTD.
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Shanghai Acmec Biochemical Technology Co., Ltd.
+86-18621343501; +undefined18621343501 product@acmec-e.com China 33324 58
Aladdin Scientific
tp@aladdinsci.com United States 57505 58
Wuhan Fortuna Chemical Co.,Ltd
+86-2759207851; +8618007136271 hk@fortunachem.com China 6010 58
KITON PURE BLUE L KITON PURE BLUE V LISSAMINE TURQUOISE VN AZURE BLUE VX BRILLIANT ACID BLUE HIDACID AZURE BLUE HIDACID BLUE V ERIOGLAUCINE SUPRA ERIOGLAUCINE DIAMMONIUM SALT ERIOGLAUCINE CALCOCID BLUE 2G CARMINE BLUE V CI NO 42090 CI NO 42045 CI 42770 DISULFIN BLUE VN 150 SODIUM SALT DISULFINE BLUE VN 150 DISULPHINE BLUE V E131 ACID BLUE 1 SODIUM SALT ACID BLUE 3 ACID BLUE 3 SODIUM SALT ACID 14030 BLUE 9 ACID BLUE ALPHAZURINE FGND ALPHAZURINE 2G ALPHAZURIN 2G ALPHAZURINE G ALPHAZURINE XYLENE BLUE VS XYLENE BLUE XYLENE BLUE VSG PATENT BLUE PATENT BLUE V PATENT BLUE V (VF) SODIUM SALT PATENT BLUE VIOLET PATENT BLUE VF SODIUM SALT PATENT BLUE V SODIUM SALT SULPHAN BLUE Hydrogen [4-[4-(diethylamino)-5'-hydroxy-2',4'-disulphonatobenzhydrylidene]cyclohexa-2,5-dien-1-ylidene]diethylammonium, monosodium salt C.I.Acid Blue 3 sodium salt C.I.Food Blue 5:2 N-[4-[[4-(Diethylamino)phenyl](5-hydroxy-4-sulfo-2-sodiosulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-N-ethylethanaminium Food Blue 5 sodium salt Patent blue V sodium C.I. 42051:2 C.I. Acid Blue 3 monosodium salt Food Blue 5:2 N-[4-[[4-(Diethylamino)phenyl](5-hydroxy-2,4-disulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-N-ethylethanaminium inner salt monosodium salt EthanaMiniuM,N-[4-[[4-(diethylaMino)phenyl](5-hydroxy-2,4-disulfophenyl)Methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-,inner salt, sodiuM salt (1:1) m-Hydroxytetraethyldiaminotriphenylcarbinol anhydride disulfonic acid sodium salt sodium,4-[[4-(diethylamino)phenyl]-(4-diethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]-6-hydroxybenzene-1,3-disulfonate Acid Blue 3 Sodium Salt (~90%) Patent Blue V, Na salt C.I.Food Blue 5:2:C.I.42051:2 Hydrogen 4-4-(diethylamino)-5'-hydroxy-2',4'-disulphonatobenzhydrylidenecyclohexa-2,5-dien-1-ylidenediethylammonium (sodium salt) Patent Blue in Acetonitrile(5%Methanol) C15895900 Patent BluEV