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Basic and cationic dyes

C.I. Basic Orange 2

Also known as Chrysoidine, Basic Orange 2, Chrysoidine G

CAS 532-82-1Formula C12H13ClN4Molar mass 248.72 g/molEC 208-545-8
29 suppliers listed
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C.I. Basic Orange 2 chemical structure, C12H13ClN4, CAS 532-82-1
2D chemical structure

Key facts

What buyers check first

All properties
Physical form
Powder
Melting point
117.8 to 118.3 °C
Solubility
1 to 10 mg/mL at 73 °F (NTP, 1992)
HS code
320413
Category
Basic and cationic dyes
Illustrative photo, 25 kg white woven sacks of powder on a pallet in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is C.I. Basic Orange 2?

Plain description, key identifiers and synonyms

Chrysoidine is an organic molecular entity.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-phenyldiazenylbenzene-1,3-diamine, hydrochloride
CAS number
532-82-1 CAS number cross-checkedOther or deprecated CAS: 1071587-01-3
EC number
208-545-8
Molecular formula
C12H13ClN4
UNII
2431787HMZ
MDL number
MFCD00012976
INCI name
BASIC ORANGE 2
InChIKey
MCTQNEBFZMBRSQ-UHFFFAOYSA-N
InChI
InChI=1S/C12H12N4.ClH/c13-9-6-7-12(11(14)8-9)16-15-10-4-2-1-3-5-10;/h1-8H,13-14H2;1H
SMILES (canonical and isomeric)
C1=CC=C(C=C1)N=NC2=C(C=C(C=C2)N)N.Cl

Synonyms

  • Chrysoidine
  • Basic Orange 2
  • Chrysoidine G
  • Chrysoidine Y
  • Chrysoidin
  • Chrysoidin Y
  • Chrysoidine Orange
  • Chrysoidine ygh
  • Chrysoidine A
  • Chrysoidine B
  • Chrysoidine J
  • Chrysoidine M
  • Tertrophene Brown CG
  • 2,4-Diaminoazobenzene hydrochloride
  • Chrysoidine GN
  • Chrysoidine GS
  • Chrysoidine HR
  • Chrysoidine SL
  • Chrysoidine SS
  • Chrysoidine YL
  • Chrysoidine YN
  • Chrysoidin FB
  • Chrysoidin YN
  • Chrysoidine PRL
  • Chrysoidine PRR
Show all 38 synonyms
  • Chrysoidine(II)
  • Sugai Chrysoidine
  • Chrysoidine Y ex
  • Pyracryl Orange Y
  • Chrysoidine (II)
  • Leather Orange HR
  • Pure chrysoidine yd
  • Chrysoidine Crystals
  • Astra Chrysoidine R
  • Calcozine Orange YS
  • Brasilazina Orange Y
  • 1,3-Benzenediamine, 4-(phenylazo)-, monohydrochloride
  • Pure Chrysoidine YBH

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Physical form
Powderexp.
Melting point
117.8 to 118.3 °Cexp.
Solubility
1 to 10 mg/mL at 73 °F (NTP, 1992)exp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
248.72 g/molcalc.
Exact mass
248.0829 Dacalc.
LogP (octanol/water)
3.69calc.
Topological polar surface area
76.76 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
2calc.
Heavy atoms
17calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
2calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccc(N=Nc2ccccc2)cc1

c1ccc(N=Nc2ccccc2)cc1

2 rings, 14 atoms, the Azobenzene ring system.

3,419 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

C.I. Basic Orange 2 suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 29 suppliers
29 of 29 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

29 suppliers in 6 countries

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C.I. Basic Orange 2 price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Use classes: Cosmetics.

Cosmetic ingredient, INCI name BASIC ORANGE 2(hair dyeing)

Functional uses

  • Dye

Cosmetic functions

  • Hair dyeing

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code C.I. Basic Orange 2 is traded under.

HS 3204.13Indicative HS code

Basic dyes and preparations based thereon

World exports in 2024
$209M
−2.6% vs 2023, imports $224M
2019 to 2024
Top exporters
  1. India * partner reported27.9%
  2. China21.8%
  3. Spain6.6%
Top importers
  1. United States11.2%
  2. China7.9%
  3. Germany7.4%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for C.I. Basic Orange 2 is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about C.I. Basic Orange 2, based on the data on this page

What is C.I. Basic Orange 2?

Chrysoidine is an organic molecular entity.

What is the CAS number of C.I. Basic Orange 2?

The CAS registry number of C.I. Basic Orange 2 is 532-82-1. Other or deprecated CAS numbers: 1071587-01-3.

What is the molecular formula and weight of C.I. Basic Orange 2?

The molecular formula of C.I. Basic Orange 2 is C12H13ClN4 and its molar mass is 248.72 g/mol.

What is C.I. Basic Orange 2 used for?

Use classes: Cosmetics.

Is C.I. Basic Orange 2 hazardous?

No GHS hazard classification for C.I. Basic Orange 2 is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of C.I. Basic Orange 2?

C.I. Basic Orange 2 is usually classified under HS code 320413 (Basic dyes and preparations based thereon). This is indicative, confirm it with your customs broker before shipping.

Where can I buy C.I. Basic Orange 2?

CompoundList lists 29 suppliers of C.I. Basic Orange 2 in India, China, Malaysia, Canada and 2 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy C.I. Basic Orange 2 in India?

14 suppliers in India list C.I. Basic Orange 2 on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of C.I. Basic Orange 2?

Suppliers quote C.I. Basic Orange 2 on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle C.I. Basic Orange 2

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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