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ChemicalBook >> CAS DataBase List >> BASIC ORANGE 21

BASIC ORANGE 21

$27 - $902
Product name: BASIC ORANGE 21
CAS: 3056-93-7
MF: C22H23ClN2
MW: 350.88
EINECS:221-290-7
MDL Number:MFCD00011947
Synonyms:1h-indole,2,3-dihydro-1,3,3-trimethyl-2-[(2-methyl-3h-indol-3-ylidene)ethylide ;2-(2-(2-methylindol-3-yl)vinyl)-1,3,3-trimethyl-3h-indoliuchloride ;aizencathilonorangegl ;aizencathilonorangeglh ;c.i.basicorange21 ;cationicorangezh ;genacrylorangeg ;nabororangeg

Price20 Properties Safety Information Description

20 prices

Selected condition：

Brand

aablocks
AK Scientific
American Custom Chemicals Corporation
Biosynth
Chem-Impex
Sigma-Aldrich
TRC
Usbiological

Package

250MG
1g
5g
10g
25g
50g
100g
250g
1 unit

Manufactureraablocks
Product numberAA003NUU
Product description2-Methyl-3-(2-(1,3,3-trimethylindolin-2-ylidene)ethylidene)-3H-indole hydrochloride Carbon30%-60%;RG
Packaging1g
Price$27
Updated2026-05-28
Buy

Manufactureraablocks
Product numberAA003NUU
Product description2-Methyl-3-(2-(1,3,3-trimethylindolin-2-ylidene)ethylidene)-3H-indole hydrochloride
Packaging5g
Price$44
Updated2026-05-28
Buy

Manufactureraablocks
Product numberAA003NUU
Product description2-Methyl-3-(2-(1,3,3-trimethylindolin-2-ylidene)ethylidene)-3H-indole hydrochloride
Packaging25g
Price$160
Updated2026-05-28
Buy

Manufactureraablocks
Product numberAA003NUU
Product description2-Methyl-3-(2-(1,3,3-trimethylindolin-2-ylidene)ethylidene)-3H-indole hydrochloride
Packaging100g
Price$386
Updated2026-05-28
Buy

ManufacturerAK Scientific
Product numberT298
Product descriptionBasicOrange21
Packaging250g
Price$190
Updated2021-12-16
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ManufacturerAmerican Custom Chemicals Corporation
Product numberDYE0000158
Product descriptionBASIC ORANGE 21 95.00%
Packaging100G
Price$234.15
Updated2021-12-16
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ManufacturerBiosynth
Product numberFB41344
Product descriptionC.I.Basic Orange 21
Packaging100g
Price$250
Updated2021-12-16
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ManufacturerBiosynth
Product numberFB41344
Product descriptionC.I.Basic Orange 21
Packaging50g
Price$160
Updated2021-12-16
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ManufacturerBiosynth
Product numberFB41344
Product descriptionC.I.Basic Orange 21
Packaging10g
Price$60
Updated2021-12-16
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ManufacturerBiosynth
Product numberFB41344
Product descriptionC.I.Basic Orange 21
Packaging25g
Price$100
Updated2021-12-16
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ManufacturerBiosynth
Product numberFB41344
Product descriptionC.I.Basic Orange 21
Packaging250g
Price$500
Updated2021-12-16
Buy

ManufacturerChem-Impex
Product number41906
Product descriptionAstrazonOrangeG,suitableforHematology&Histology suitableforHematology&Histology
Packaging100G
Price$152.32
Updated2021-12-16
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ManufacturerChem-Impex
Product number41906
Product descriptionAstrazon Orange G
Packaging100G
Price$189.58
Updated2026-05-19
Buy

ManufacturerSigma-Aldrich
Product numberR324116
Product descriptionBASIC ORANGE 21 (GENACRYL ORANGE G) Aldrich^CPR
Packaging1 unit
Price$197
Updated2026-04-30
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ManufacturerSigma-Aldrich
Product number274216
Product descriptionAstrazon Orange G
Packaging100g
Price$141.4
Updated2026-04-30
Buy

ManufacturerSigma-Aldrich
Product numberR324116
Product descriptionBASIC ORANGE 21 (GENACRYL ORANGE G) AldrichCPR
Packaging250MG
Price$179
Updated2024-03-01
Buy

Manufacturer	Product number	Product description	Packaging	Price	Updated	Buy
aablocks	AA003NUU	2-Methyl-3-(2-(1,3,3-trimethylindolin-2-ylidene)ethylidene)-3H-indole hydrochloride Carbon30%-60%;RG	1g	$27	2026-05-28	Buy
aablocks	AA003NUU	2-Methyl-3-(2-(1,3,3-trimethylindolin-2-ylidene)ethylidene)-3H-indole hydrochloride	5g	$44	2026-05-28	Buy
aablocks	AA003NUU	2-Methyl-3-(2-(1,3,3-trimethylindolin-2-ylidene)ethylidene)-3H-indole hydrochloride	25g	$160	2026-05-28	Buy
aablocks	AA003NUU	2-Methyl-3-(2-(1,3,3-trimethylindolin-2-ylidene)ethylidene)-3H-indole hydrochloride	100g	$386	2026-05-28	Buy
AK Scientific	T298	BasicOrange21	250g	$190	2021-12-16	Buy
American Custom Chemicals Corporation	DYE0000158	BASIC ORANGE 21 95.00%	100G	$234.15	2021-12-16	Buy
Biosynth	FB41344	C.I.Basic Orange 21	100g	$250	2021-12-16	Buy
Biosynth	FB41344	C.I.Basic Orange 21	50g	$160	2021-12-16	Buy
Biosynth	FB41344	C.I.Basic Orange 21	10g	$60	2021-12-16	Buy
Biosynth	FB41344	C.I.Basic Orange 21	25g	$100	2021-12-16	Buy
Biosynth	FB41344	C.I.Basic Orange 21	250g	$500	2021-12-16	Buy
Chem-Impex	41906	AstrazonOrangeG,suitableforHematology&Histology suitableforHematology&Histology	100G	$152.32	2021-12-16	Buy
Chem-Impex	41906	Astrazon Orange G	100G	$189.58	2026-05-19	Buy
Sigma-Aldrich	R324116	BASIC ORANGE 21 (GENACRYL ORANGE G) Aldrich^CPR	1 unit	$197	2026-04-30	Buy
Sigma-Aldrich	274216	Astrazon Orange G	100g	$141.4	2026-04-30	Buy
Sigma-Aldrich	R324116	BASIC ORANGE 21 (GENACRYL ORANGE G) AldrichCPR	250MG	$179	2024-03-01	Buy

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Properties

storage temp. :room temp
solubility :methanol: water (1:1): 10mg/mL, clear to hazy, red-orange
Colour Index :48035
form :powder
λmax :490 nm
ε(extinction coefficient) :≥19000 at 487-493nm
≥3000 at 268-274nm Major Application :diagnostic assay manufacturing
hematology
histology InChI :1S/C22H22N2.ClH/c1-15-16(17-9-5-7-11-19(17)23-15)13-14-21-22(2,3)18-10-6-8-12-20(18)24(21)4;/h5-14H,1-4H3;1H
InChIKey :ZOMLUNRKXJYKPD-UHFFFAOYSA-N
SMILES :[Cl-].Cc1[nH]c2ccccc2c1\C=C\C3=[N+](C)c4ccccc4C3(C)C
EPA Substance Registry System :1H-Indole, 2,3-dihydro-1,3,3-trimethyl-2-[2-(2-methyl-3H-indol-3-ylidene)ethylidene]-, hydrochloride (1:1) (3056-93-7)

Safety Information

Symbol(GHS):

Signal word:

Warning

Hazard statements:

Code	Hazard statements	Hazard class	Category	Signal word	P-Codes
H315	Causes skin irritation	Skin corrosion/irritation	Category 2	Warning	P264, P280, P302+P352, P321,P332+P313, P362
H319	Causes serious eye irritation	Serious eye damage/eye irritation	Category 2A	Warning	P264, P280, P305+P351+P338,P337+P313P
H335	May cause respiratory irritation	Specific target organ toxicity, single exposure;Respiratory tract irritation	Category 3	Warning

Precautionary statements:

P261	Avoid breathing dust/fume/gas/mist/vapours/spray.
P264	Wash hands thoroughly after handling.
P264	Wash skin thouroughly after handling.
P280	Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338	IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

Astrazon Orange G is a metachromatic dye. Color index number: 48035

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BASIC ORANGE 21

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