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Direct dyes

Direct Yellow 29

Also known as C.I. 19556, C.I. Direct Yellow 29, Sodium 6-methyl-2'-(4-((4-(6-methyl-7-sulfonato-[2,6'-bibenzo[d]thiazol]-2'-yl)phenyl)diazenyl)phenyl)-[2,6'-bibenzo[d]thiazole]-7-sulfonate

Formula C42H24N6Na2O6S6Molar mass 947.07 g/molEC 229-448-7
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Direct Yellow 29 chemical structure, C42H24N6Na2O6S6
2D chemical structure

Key facts

What buyers check first

All properties
Formula
C42H24N6Na2O6S6
Molar mass
947.07 g/mol
EC number
229-448-7
HS code
320414
Category
Direct dyes

What is Direct Yellow 29?

Plain description, key identifiers and synonyms

Direct Yellow 29 is a chemical substance with the molecular formula C42H24N6Na2O6S6 and a molar mass of 947.07 g/mol. The IUPAC name is disodium, 6-methyl-2-[2-[4-[[4-[6-(6-methyl-7-sulfonato-1,3-benzothiazol-2-yl)-1,3-benzothiazol-2-yl]phenyl]diazenyl]phenyl]-1,3-benzothiazol-6-yl]-1,3-benzothiazole-7-sulfonate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
disodium, 6-methyl-2-[2-[4-[[4-[6-(6-methyl-7-sulfonato-1,3-benzothiazol-2-yl)-1,3-benzothiazol-2-yl]phenyl]diazenyl]phenyl]-1,3-benzothiazol-6-yl]-1,3-benzothiazole-7-sulfonate
EC number
229-448-7
Molecular formula
C42H24N6Na2O6S6
UNII
S240D948B7
InChIKey
ZZMVQXGPIIXLMO-UHFFFAOYSA-L
InChI
InChI=1S/C42H26N6O6S6.2Na/c1-21-3-15-31-35(37(21)59(49,50)51)57-41(45-31)25-9-17-29-33(19-25)55-39(43-29)23-5-11-27(12-6-23)47-48-28-13-7-24(8-14-28)40-44-30-18-10-26(20-34(30)56-40)42-46-32-16-4-22(2)38(36(32)58-42)60(52,53)54;;/h3-20H,1-2H3,(H,49,50,51)(H,52,53,54);;/q;2*+1/p-2
SMILES (canonical and isomeric)
CC1=C(C2=C(C=C1)N=C(S2)C3=CC4=C(C=C3)N=C(S4)C5=CC=C(C=C5)N=NC6=CC=C(C=C6)C7=NC8=C(S7)C=C(C=C8)C9=NC1=C(S9)C(=C(C=C1)C)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]

Synonyms

  • C.I. 19556
  • C.I. Direct Yellow 29
  • Sodium 6-methyl-2'-(4-((4-(6-methyl-7-sulfonato-[2,6'-bibenzo[d]thiazol]-2'-yl)phenyl)diazenyl)phenyl)-[2,6'-bibenzo[d]thiazole]-7-sulfonate
  • CI 19556

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

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

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
947.07 g/molcalc.
Exact mass
945.9877 Dacalc.
LogP (octanol/water)
5.64calc.
Topological polar surface area
190.7 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
16calc.
Rotatable bonds
8calc.
Heavy atoms
62calc.
Rings
10calc.
Aromatic rings
10calc.
Fraction sp3 carbons
0.05calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
3calc.
Lipinski rule of five
Fails (3 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, c1ccc2sc(-c3ccc4nc(-c5ccc(N=Nc6ccc(-c7nc8ccc(-c9nc%10ccccc%10s9)cc8s7)cc6)cc5)sc4c3)nc2c1

c1ccc2sc(-c3ccc4nc(-c5ccc(N=Nc6ccc(-c7nc8ccc(-c9nc%10ccccc%10s9)cc8s7)cc6)cc5)sc4c3)nc2c1

10 rings, 50 atoms.

2 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.

Direct Yellow 29 suppliers

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Direct Yellow 29 price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Industries and functions

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Direct Yellow 29 is traded under.

HS 3204.14Indicative HS code

Direct dyes and preparations based thereon

World exports in 2024
$328M
−1.5% vs 2023, imports $336M
2019 to 2024
Top exporters
  1. India * partner reported34.9%
  2. China11.3%
  3. Spain9.0%
Top importers
  1. Italy9.8%
  2. Germany8.7%
  3. Netherlands7.8%

* Partner reported figures, a lower bound.

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

The HS code shown for Direct Yellow 29 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Direct Yellow 29, based on the data on this page

What is Direct Yellow 29?

Direct Yellow 29 is a chemical substance with the molecular formula C42H24N6Na2O6S6 and a molar mass of 947.07 g/mol. The IUPAC name is disodium, 6-methyl-2-[2-[4-[[4-[6-(6-methyl-7-sulfonato-1,3-benzothiazol-2-yl)-1,3-benzothiazol-2-yl]phenyl]diazenyl]phenyl]-1,3-benzothiazol-6-yl]-1,3-benzothiazole-7-sulfonate.

What is the molecular formula and weight of Direct Yellow 29?

The molecular formula of Direct Yellow 29 is C42H24N6Na2O6S6 and its molar mass is 947.07 g/mol.

What is Direct Yellow 29 used for?

Known uses and roles of Direct Yellow 29 include textile dyes in textiles and leather.

Is Direct Yellow 29 hazardous?

No GHS hazard classification for Direct Yellow 29 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 Direct Yellow 29?

Direct Yellow 29 is usually classified under HS code 320414 (Direct dyes and preparations based thereon). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Direct Yellow 29?

Post a free request on CompoundList and suppliers of Direct Yellow 29 will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Direct Yellow 29?

Suppliers quote Direct Yellow 29 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 Direct Yellow 29

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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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