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Antibiotics and anti-infectives

Dideoxycytidine

Also known as zalcitabine, 2',3'-Dideoxycytidine, ddCyd

CAS 7481-89-2Formula C9H13N3O3Molar mass 211.22 g/molEC 620-762-3
GHS signal word: Warning. Pictograms: Serious health hazard 81 suppliers listed
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Dideoxycytidine chemical structure, C9H13N3O3, CAS 7481-89-2
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Crystals from ethanol and benzene
Melting point
215 to 217
Solubility
In water, 76,400 mg/l @ 25 °C
HS code
293499
Category
Antibiotics and anti-infectives
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 Dideoxycytidine?

Plain description, key identifiers and synonyms

Zalcitabine is a pyrimidine 2',3'-dideoxyribonucleoside compound having cytosine as the nucleobase. It has a role as an antimetabolite, an antiviral drug and a HIV-1 reverse transcriptase inhibitor.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-amino-1-[(2R,5S)-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one
CAS number
7481-89-2 CAS number cross-checked
EC number
620-762-3
Molecular formula
C9H13N3O3
UNII
6L3XT8CB3I
MDL number
MFCD00012188
InChIKey
WREGKURFCTUGRC-POYBYMJQSA-N
InChI
InChI=1S/C9H13N3O3/c10-7-3-4-12(9(14)11-7)8-2-1-6(5-13)15-8/h3-4,6,8,13H,1-2,5H2,(H2,10,11,14)/t6-,8+/m0/s1
Canonical SMILES
Nc1ccn(C2CCC(CO)O2)c(=O)n1
Isomeric SMILES
C1C[C@@H](O[C@@H]1CO)N2C=CC(=NC2=O)N

Synonyms

  • zalcitabine
  • 2',3'-Dideoxycytidine
  • ddCyd
  • Cytidine, 2',3'-dideoxy-
  • 4-Amino-1-((2R,5S)-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one
  • Ro 24-2027/000
  • Ro-24-2027/000
  • zalcitabina
  • 4-amino-1-[(2R,5S)-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one
  • 4-amino-1-[(2R,5S)-5-(hydroxymethyl)tetrahydrofuran-2-yl]pyrimidin-2(1H)-one
  • Ro-24-2027000
  • Zalcitabine (dideoxycytidine,ddc)
  • ddC (Antiviral)
  • 4-Amino-1-[(2R,5S)-5-(hydroxymethyl)oxolan-2-yl]-1,2-dihydropyrimidin-2-one
  • HIVID Roche
  • 2',3' Dideoxycytidine
  • zalcitabinum
  • 4-amino-1-((2R,5S)-5-(hydroxymethyl)oxolan-2-yl)pyrimidin-2-one
  • 4-amino-1-((2R,5S)-5-(hydroxymethyl)oxolan-2-yl)-1,2-dihydropyrimidin-2-one
  • HIVID
  • ddC
  • 2', 3'-dideoxycytidine
  • Zalcitibine
  • 4-amino-1-[(2R,5S)-5-(hydroxymethyl)tetrahydrofuran-2-yl]pyrimidin-2-one
  • 2,3-dideoxycytidine
Show all 37 synonyms
  • Hivid(TM)
  • Hivid (TN)
  • ddC & GM-CSF
  • ddC & sCD4
  • PC-SOD & ddC
  • DDC (DDC)
  • Zalcitabine (JAN/USP/INN)
  • Zalcitabine?
  • DS-4152 & ddC
  • 3-[(5S,2R)-5-(hydroxymethyl)oxolan-2-yl]-6-amino-3-hydropyrimidin-2-one
  • 1-(2,3-Dideoxy-beta-D-ribofuranosyl)cytosine
  • ddC & NP (from PHCA or HSA)

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

Appearance
Crystals from ethanol and benzeneexp.
Melting point
215 to 217exp.
Solubility
In water, 76,400 mg/l @ 25 °Cexp.
Vapour pressure
5.8 × 10⁻⁸ mm Hg @ 25 °C /Estimated/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
211.22 g/molcalc.
Exact mass
211.0957 Dacalc.
LogP (octanol/water)
-0.5calc.
Topological polar surface area
90.37 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
2calc.
Heavy atoms
15calc.
Rings
2calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.56calc.
Formal charge
0calc.
Stereocentres
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, O=c1ncccn1C1CCCO1

O=c1ncccn1C1CCCO1

2 rings, 12 atoms.

1,589 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H351Suspected of causing cancer.
  • H361Suspected of damaging fertility or the unborn child.
Precautionary statements (5)
  • P203Obtain, read and follow all safety instructions before use.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P318If exposed or concerned, get medical advice.
  • 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

Dideoxycytidine suppliers

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

All 81 suppliers
30 of 30 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

81 suppliers in 14 countries

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Dideoxycytidine 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

Antiviral.

Pharmacological actions

  • Anti-HIV Agents
  • Antimetabolites
  • Reverse Transcriptase Inhibitors

Roles

  • HIV-1 reverse transcriptase inhibitor
  • anti-HIV agent
  • anti-HIV-1 agent
  • antiinfective agent
  • antimetabolite
  • antimicrobial agent
  • antimicrobial drug
  • antiviral agent
  • antiviral drug
  • enzyme inhibitor
  • pharmaceutical

Pharmacology

Zalcitabine is a synthetic dideoxynucleoside. After intracellular phosphorylation to its active metabolite, zalcitabine preferentially inhibits the gamma form of DNA polymerase present in tumor cell mitochondria, resulting in the inhibition of tumor cell mitochondrial DNA replication and tumor cell death. (NCI04)

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 Dideoxycytidine is traded under.

HS 2934.99Indicative HS code

Nucleic acids and their salts, other heterocyclic compounds, not elsewhere classified in heading 2934

World exports in 2024
$26.7B
+15.0% vs 2023, imports $26.3B
2019 to 2024
Top exporters
  1. Ireland26.3%
  2. China15.7%
  3. Singapore10.3%
Top importers
  1. United States24.5%
  2. Germany23.1%
  3. Japan4.5%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Dideoxycytidine?

Zalcitabine is a pyrimidine 2',3'-dideoxyribonucleoside compound having cytosine as the nucleobase. It has a role as an antimetabolite, an antiviral drug and a HIV-1 reverse transcriptase inhibitor.

What is the CAS number of Dideoxycytidine?

The CAS registry number of Dideoxycytidine is 7481-89-2.

What is the molecular formula and weight of Dideoxycytidine?

The molecular formula of Dideoxycytidine is C9H13N3O3 and its molar mass is 211.22 g/mol.

What is Dideoxycytidine used for?

Antiviral.

Is Dideoxycytidine hazardous?

Dideoxycytidine carries the GHS signal word "Warning". Main hazards: suspected of causing cancer, suspected of damaging fertility or the unborn child. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Dideoxycytidine?

Dideoxycytidine is usually classified under HS code 293499 (Nucleic acids and their salts, whether or not chemically defined, other heterocyclic…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Dideoxycytidine?

CompoundList lists 81 suppliers of Dideoxycytidine in China, United States, Germany, United Kingdom and 10 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Dideoxycytidine?

Suppliers quote Dideoxycytidine 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 Dideoxycytidine

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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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