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BASIC ORANGE 21

CAS No.
3056-93-7
Chemical Name:
BASIC ORANGE 21
Synonyms
orangezh;CI 48035;nabororangeg;genacrylorangeg;BASIC ORANGE 21;SEVRON ORANGE G;sumiacrylorangeg;cationicorangezh;Orlamar Orange G;c.i.basicorange21
CBNumber:
CB5285532
Molecular Formula:
C22H23ClN2
Molecular Weight:
350.88
MDL Number:
MFCD00011947
MOL File:
3056-93-7.mol
MSDS File:
SDS
Last updated:2026-01-13 11:22:50
Product description Number Pack Size Price
BASIC ORANGE 21 (GENACRYL ORANGE G) AldrichCPR R324116 1 unit $185
Astrazon Orange G 274216 100g $184.3
BASIC ORANGE 21 (GENACRYL ORANGE G) AldrichCPR R324116 250MG $179
Astrazon Orange G A790210 25g $130
AstrazonOrangeG,suitableforHematology&Histology suitableforHematology&Histology 41906 100G $152.32
More product size

BASIC ORANGE 21 Properties

storage temp. room temp
solubility methanol: water (1:1): 10mg/mL, clear to hazy, red-orange
Colour Index 48035
form powder
ε(extinction coefficient) ≥19000 at 487-493nm
≥3000 at 268-274nm
λmax 490 nm
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)
UNSPSC Code 12171500
NACRES NA.47

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H312+H332-H315-H319-H335
Precautionary statements  P261-P264-P280-P302+P352+P312-P304+P340+P312-P305+P351+P338
target organs Respiratory system
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xn
Risk Statements  20/21/22-36/37/38
Safety Statements  26-28-36/37/39-45
WGK Germany  3
RTECS  NM2251000
TSCA  TSCA listed
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Dermal
Eye Irrit. 2
Skin Irrit. 2
STOT SE 3

BASIC ORANGE 21 price More Price(12)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich R324116 BASIC ORANGE 21 (GENACRYL ORANGE G) AldrichCPR 1 unit $185 2025-07-31 Buy
Sigma-Aldrich 274216 Astrazon Orange G 3056-93-7 100g $184.3 2025-07-31 Buy
Sigma-Aldrich R324116 BASIC ORANGE 21 (GENACRYL ORANGE G) AldrichCPR 3056-93-7 250MG $179 2024-03-01 Buy
TRC A790210 Astrazon Orange G 3056-93-7 25g $130 2021-12-16 Buy
Chem-Impex 41906 AstrazonOrangeG,suitableforHematology&Histology suitableforHematology&Histology 3056-93-7 100G $152.32 2021-12-16 Buy
Product number Packaging Price Buy
R324116 1 unit $185 Buy
274216 100g $184.3 Buy
R324116 250MG $179 Buy
A790210 25g $130 Buy
41906 100G $152.32 Buy

BASIC ORANGE 21 Chemical Properties,Uses,Production

Chemical Properties

Slightly soluble in cold water, dissolved in hot water, are yellowish orange, dissolved in ethanol is also yellowish orange. The color and light change greatly when it meets copper and iron ions when dyeing. The color and light remain unchanged when dyed at high temperature of 120℃.

Uses

Metachromatic dye

Preparation

2-(1,3,3-Trimethylindolin-2-yl)acetaldehyde and 2-Methyl-2H-indazole??in 90 ℃ in the condensation, and then dumped into the water, and translated into chloride.

Properties and Applications

bright yellow orange. Soluble in water and ethanol are yellow, slightly soluble in cold water, soluble in hot water. Dye acrylic fiber as a bright yellow orange, tungsten filament in light slant red light. In 120 ℃ dyeing color when unchanged. In the dying encounter copper, iron ion colored light changes greatly. This product used for acrylic, two vinegar fiber, modified polyester dyeing and printing.

Standard Light Fastness Persperation Fastness Ironing Fastness Soaping
Fading Stain Fading Stain Fading Stain
ISO 4-5 4-5 4-5 4-5 4-5
AATCC 5-6 5 5 3 5 5

BASIC ORANGE 21 Preparation Products And Raw materials

Global( 93)Suppliers
Supplier Tel Email Country ProdList Advantage
Hubei xin bonus chemical co. LTD
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GIHI CHEMICALS CO.,LIMITED
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SUZHOU SENFEIDA CHEMICAL CO.,LTD
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Wuhan Fortuna Chemical Co.,Ltd
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XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.
+8618950047208 ellena@amitychem.com China 43416 58
DAYANG CHEM (HANGZHOU) CO.,LTD
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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 orangezh sumiacrylorangeg Astrazon Orange G,Basic Orange 21 BASIC ORANGE 21 ASTRAZON ORANGE G CI 48035 SEVRON ORANGE G SANDOCRYL ORANGE B-G 1,3,3-trimethyl-2-[(2-methyl-3H-indol-3-ylidene)ethylidene]indoline monohydrochloride BASIC ORANGE 21 C.I. 48035 (ASTRAZON ORANGE G) BASIC ORANGE 21 (C.I. 48035) Cationic Orange GL Disperse Cationic Orange SD-G 1H-Indole, 2, 3-dihydro-1, 3, 3-trimethyl-2-[(2-methyl-3H-indol-3-ylidene)ethylidene], monohydrochloride Apollo Cationic Orange GL Conbasic Orange BA Orlamar Orange G Triacryl Orange GL. BASIC ORANGE 21 (GENACRYL ORANGE G) 1,3,3-trimethyl-2-[(E)-2-(2-methyl-1H-indol-3-yl)ethenyl]indol-1-ium,chloride BASIC ORANGE 21 ISO 9001:2015 REACH C.I.Basic Orange 21:C.I.48035 Basic Orange 21 in Methanol:DMSO=1:1 3056-93-7 C22H23ClN2 C22H23N2Cl