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Isotope-labelled compounds

Dichloride

Also known as Paraquat-d8 Dichloride, Paraquat dichloride D8, Methyl Viologen-d8 Dichloride

CAS 654073-29-7Formula C12H14Cl2N2Molar mass 265.21 g/molEC 621-674-8
GHS signal word: Danger. Pictograms: Corrosive, Harmful or irritant
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Dichloride chemical structure, C12H14Cl2N2, CAS 654073-29-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
654073-29-7
Formula
C12H14Cl2N2
Molar mass
265.21 g/mol
EC number
621-674-8
HS code
284590
Category
Isotope-labelled compounds

What is Dichloride?

Plain description, key identifiers and synonyms

Dichloride is a chemical substance with the molecular formula C12H14Cl2N2 and a molar mass of 265.21 g/mol. Its CAS registry number is 654073-29-7. The IUPAC name is 2,3,5,6-tetradeuterio-1-methyl-4-(2,3,5,6-tetradeuterio-1-methylpyridin-1-ium-4-yl)pyridin-1-ium dichloride.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2,3,5,6-tetradeuterio-1-methyl-4-(2,3,5,6-tetradeuterio-1-methylpyridin-1-ium-4-yl)pyridin-1-ium dichloride
CAS number
654073-29-7Other or deprecated CAS: 347841-45-6
EC numbers
621-674-8, 808-617-4
Molecular formula
C12H14Cl2N2
InChIKey
FIKAKWIAUPDISJ-FUIWBTGGSA-L
InChI
InChI=1S/C12H14N2.2ClH/c1-13-7-3-11(4-8-13)12-5-9-14(2)10-6-12;;/h3-10H,1-2H3;2*1H/q+2;;/p-2/i3D,4D,5D,6D,7D,8D,9D,10D;;
Canonical SMILES
C[n+]1ccc(-c2cc[n+](C)cc2)cc1.[Cl-].[Cl-]
Isomeric SMILES
[2H]C1=C([N+](=C(C(=C1C2=C(C(=[N+](C(=C2[2H])[2H])C)[2H])[2H])[2H])[2H])C)[2H].[Cl-].[Cl-]

Synonyms

  • Paraquat-d8 Dichloride
  • Paraquat dichloride D8
  • Methyl Viologen-d8 Dichloride
  • 2,3,5,6-tetradeuterio-1-methyl-4-(2,3,5,6-tetradeuterio-1-methylpyridin-1-ium-4-yl)pyridin-1-ium, dichloride
  • Methyl Viologen-d8 Dichloride (rings-d8)
  • Paraquat dichloride-d8
  • Paraquat dichloride-(rings-d8) hydrate, analytical standard
  • 1,1'-Dimethyl(~2~H_8_)-4,4'-bipyridin-1-ium dichloride

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
265.21 g/molcalc.
Exact mass
264.1036 Dacalc.
LogP (octanol/water)
-4.99calc.
Topological polar surface area
7.76 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
1calc.
Heavy atoms
16calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.17calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
3calc.
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, c1cc(-c2ccncc2)ccn1

c1cc(-c2ccncc2)ccn1

2 rings, 12 atoms, the 4,4'-Bipyridine ring system.

329 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H318Causes serious eye damage.
  • H335May cause respiratory irritation.
  • H413May cause long lasting harmful effects to aquatic life.
Precautionary statements (17)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: 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

Dichloride suppliers

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Dichloride 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 Dichloride is traded under.

HS 2845.90Indicative HS code

Compounds, inorganic or organic, of such isotopes, whether or not chemically defined

World exports in 2024
$2.67B
+19.0% vs 2023, imports $1.67B
2019 to 2024
Top exporters
  1. Ireland55.3%
  2. Hong Kong11.8%
  3. United States10.7%
Top importers
  1. China24.3%
  2. Ireland21.9%
  3. South Korea13.3%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Dichloride, based on the data on this page

What is Dichloride?

Dichloride is a chemical substance with the molecular formula C12H14Cl2N2 and a molar mass of 265.21 g/mol. Its CAS registry number is 654073-29-7. The IUPAC name is 2,3,5,6-tetradeuterio-1-methyl-4-(2,3,5,6-tetradeuterio-1-methylpyridin-1-ium-4-yl)pyridin-1-ium dichloride.

What is the CAS number of Dichloride?

The CAS registry number of Dichloride is 654073-29-7. Other or deprecated CAS numbers: 347841-45-6.

What is the molecular formula and weight of Dichloride?

The molecular formula of Dichloride is C12H14Cl2N2 and its molar mass is 265.21 g/mol.

What is Dichloride used for?

Known uses and roles of Dichloride include isotope-labelled compounds in research and laboratory.

Is Dichloride hazardous?

Dichloride carries the GHS signal word "Danger". Main hazards: causes skin irritation, causes serious eye damage, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Dichloride?

Dichloride is usually classified under HS code 284590 (Isotopes other than those of heading 2844, compounds, inorganic or organic, of such…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Dichloride?

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What is the price of Dichloride?

Suppliers quote Dichloride 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 Dichloride

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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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