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Aromatic building blocks

Fast Violet B

Also known as N-(4-Amino-5-methoxy-2-methylphenyl)benzamide, Benzamide, N-(4-amino-5-methoxy-2-methylphenyl)-, 4'-Amino-5'-methoxy-2'-methylbenzanilide

CAS 99-21-8Formula C15H16N2O2Molar mass 256.31 g/molEC 202-740-1
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Fast Violet B chemical structure, C15H16N2O2, CAS 99-21-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
99-21-8
Formula
C15H16N2O2
Molar mass
256.31 g/mol
EC number
202-740-1
HS code
292429
Category
Aromatic building blocks

What is Fast Violet B?

Plain description, key identifiers and synonyms

Fast Violet B is a chemical substance with the molecular formula C15H16N2O2 and a molar mass of 256.31 g/mol. Its CAS registry number is 99-21-8. The IUPAC name is N-(4-amino-5-methoxy-2-methylphenyl)benzamide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
N-(4-amino-5-methoxy-2-methylphenyl)benzamide
CAS number
99-21-8 CAS number cross-checked
EC numbers
202-740-1, 248-643-8
Molecular formula
C15H16N2O2
UNII
6W37LKR3X8
MDL number
MFCD00064435
InChIKey
VENDXQNWODZJGB-UHFFFAOYSA-N
InChI
InChI=1S/C15H16N2O2/c1-10-8-12(16)14(19-2)9-13(10)17-15(18)11-6-4-3-5-7-11/h3-9H,16H2,1-2H3,(H,17,18)
SMILES (canonical and isomeric)
CC1=CC(=C(C=C1NC(=O)C2=CC=CC=C2)OC)N

Synonyms

  • N-(4-Amino-5-methoxy-2-methylphenyl)benzamide
  • Benzamide, N-(4-amino-5-methoxy-2-methylphenyl)-
  • 4'-Amino-5'-methoxy-2'-methylbenzanilide
  • Fast Violet B, Dye content 85 %
  • N-(4-Amino-5-methoxy-2-methylphenyl)benzamide #
  • 4-benzoylamino-2-methoxy-5-methylaniline
  • 4-Benzoylamino-2-methoxy-5-methylbenzeneamine
  • N-(4-amino-5-methoxy-2-methyl-phenyl)benzamide
  • Fast Violet B - Dye content 85%
  • Sdccgmls-0066235.p001
  • n-(4-amino-5-methoxy-2-methylphenyl)-benzamide
  • N - (4-Amino-5-methoxy-2-methylphenyl) benzamide
  • N-(2-Methyl-5-methoxy-4-aminophenyl)benzamide

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
256.31 g/molcalc.
Exact mass
256.1212 Dacalc.
LogP (octanol/water)
2.84calc.
Topological polar surface area
64.35 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
3calc.
Heavy atoms
19calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.13calc.
Formal charge
0calc.
Stereocentres
0calc.
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, O=C(Nc1ccccc1)c1ccccc1

O=C(Nc1ccccc1)c1ccccc1

2 rings, 15 atoms, the Benzanilide ring system.

13,118 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.

Fast Violet B suppliers

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Fast Violet B 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

Regulatory status

Inventories, regulations and trade controls that list this substance

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 Fast Violet B is traded under.

HS 2924.29Indicative HS code

Cyclic amides (including cyclic carbamates) and their derivatives, salts thereof, other

World exports in 2024
$5.69B
−5.1% vs 2023, imports $5.8B
2019 to 2024
Top exporters
  1. China32.3%
  2. Switzerland * partner reported13.6%
  3. Norway * partner reported12.8%
Top importers
  1. United States15.9%
  2. Ireland15.8%
  3. Germany11.9%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Fast Violet B, based on the data on this page

What is Fast Violet B?

Fast Violet B is a chemical substance with the molecular formula C15H16N2O2 and a molar mass of 256.31 g/mol. Its CAS registry number is 99-21-8. The IUPAC name is N-(4-amino-5-methoxy-2-methylphenyl)benzamide.

What is the CAS number of Fast Violet B?

The CAS registry number of Fast Violet B is 99-21-8.

What is the molecular formula and weight of Fast Violet B?

The molecular formula of Fast Violet B is C15H16N2O2 and its molar mass is 256.31 g/mol.

What is Fast Violet B used for?

Known uses and roles of Fast Violet B include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Fast Violet B hazardous?

No GHS hazard classification for Fast Violet B 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 Fast Violet B?

Fast Violet B is usually classified under HS code 292429 (Cyclic amides (including cyclic carbamates) and their derivatives, salts thereof, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Fast Violet B?

Post a free request on CompoundList and suppliers of Fast Violet B will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Fast Violet B?

Suppliers quote Fast Violet B 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 Fast Violet B

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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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