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Heterocyclic building blocks

6-Mercaptonicotinamide

Also known as Nicotinamide, 6-mercapto-, 2-Mercaptopyridine-5-carboxamide, 6-Mercapto-3-pyridinecarboximide

CAS 7151-89-5Formula C6H6N2OSMolar mass 154.19 g/molEC 987-173-4
GHS signal word: Warning. Pictograms: Harmful or irritant 1 supplier listed
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6-Mercaptonicotinamide chemical structure, C6H6N2OS, CAS 7151-89-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
7151-89-5
Formula
C6H6N2OS
Molar mass
154.19 g/mol
EC number
987-173-4
HS code
293339
Category
Heterocyclic building blocks

What is 6-Mercaptonicotinamide?

Plain description, key identifiers and synonyms

6-Mercaptonicotinamide is a chemical substance with the molecular formula C6H6N2OS and a molar mass of 154.19 g/mol. Its CAS registry number is 7151-89-5. The IUPAC name is 6-sulfanylidene-1H-pyridine-3-carboxamide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
6-sulfanylidene-1H-pyridine-3-carboxamide
CAS number
7151-89-5 CAS number cross-checked
EC number
987-173-4
Molecular formula
C6H6N2OS
UNII
SV73MCW4KF
InChIKey
PWSJCBQLHHENIG-UHFFFAOYSA-N
InChI
InChI=1S/C6H6N2OS/c7-6(9)4-1-2-5(10)8-3-4/h1-3H,(H2,7,9)(H,8,10)
SMILES (canonical and isomeric)
C1=CC(=S)NC=C1C(=O)N

Synonyms

  • Nicotinamide, 6-mercapto-
  • 2-Mercaptopyridine-5-carboxamide
  • 6-Mercapto-3-pyridinecarboximide
  • 3-Pyridinecarboxamide, 1,6-dihydro-6-thioxo-
  • 1,6-Dihydro-6-thioxo-3-pyridinecarboxamide
  • 6-sulfanylidene-1H-pyridine-3-carboxamide
  • 6-Mercaptonicotinamid
  • 6-Sulfanylpyridine-3-carboxamide
  • 6-thioxo-1,6-dihydropyridine-3-carboxamide
  • 6-Sulfanylidene-1,6-dihydropyridine-3-carboxamide

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
154.19 g/molcalc.
Exact mass
154.0201 Dacalc.
LogP (octanol/water)
0.84calc.
Topological polar surface area
58.88 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
1calc.
Heavy atoms
10calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0calc.
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, S=c1cccc[nH]1

S=c1cccc[nH]1

1 ring, 7 atoms, the 2-Mercaptopyridine ring system.

383 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (19)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

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

Full safety data and first aid

6-Mercaptonicotinamide suppliers

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Where suppliers are based

1 supplier in 1 country

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6-Mercaptonicotinamide 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

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 6-Mercaptonicotinamide is traded under.

HS 2933.39Indicative HS code

Heterocyclic compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure…

World exports in 2024
$9.16B
−17.9% vs 2023, imports $10.6B
2019 to 2024
Top exporters
  1. China21.5%
  2. India * partner reported12.3%
  3. Ireland11.6%
Top importers
  1. Germany14.2%
  2. United States12.8%
  3. Brazil10.1%

* Partner reported figures, a lower bound.

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

The HS code shown for 6-Mercaptonicotinamide is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 6-Mercaptonicotinamide, based on the data on this page

What is 6-Mercaptonicotinamide?

6-Mercaptonicotinamide is a chemical substance with the molecular formula C6H6N2OS and a molar mass of 154.19 g/mol. Its CAS registry number is 7151-89-5. The IUPAC name is 6-sulfanylidene-1H-pyridine-3-carboxamide.

What is the CAS number of 6-Mercaptonicotinamide?

The CAS registry number of 6-Mercaptonicotinamide is 7151-89-5.

What is the molecular formula and weight of 6-Mercaptonicotinamide?

The molecular formula of 6-Mercaptonicotinamide is C6H6N2OS and its molar mass is 154.19 g/mol.

What is 6-Mercaptonicotinamide used for?

Known uses and roles of 6-Mercaptonicotinamide include building blocks in research and laboratory and screening compounds in research and laboratory.

Is 6-Mercaptonicotinamide hazardous?

6-Mercaptonicotinamide carries the GHS signal word "Warning". Main hazards: harmful if swallowed, causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 6-Mercaptonicotinamide?

6-Mercaptonicotinamide is usually classified under HS code 293339 (Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 6-Mercaptonicotinamide?

CompoundList lists 1 supplier of 6-Mercaptonicotinamide in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of 6-Mercaptonicotinamide?

Suppliers quote 6-Mercaptonicotinamide 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 6-Mercaptonicotinamide

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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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