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Nucleosides and nucleotides

Cylocide

Also known as Cytosine, monohydrochloride, Cytosine beta-D-arabinofuranoside hydrochloride, Arabinosyl cytosine hydrochloride

CAS 21028-03-5Formula C9H14ClN3O5Molar mass 279.68 g/mol
1 supplier listed
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Cylocide chemical structure, C9H14ClN3O5, CAS 21028-03-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
21028-03-5
Formula
C9H14ClN3O5
Molar mass
279.68 g/mol
HS code
293499
Category
Nucleosides and nucleotides

What is Cylocide?

Plain description, key identifiers and synonyms

Cylocide is a chemical substance with the molecular formula C9H14ClN3O5 and a molar mass of 279.68 g/mol. Its CAS registry number is 21028-03-5. The IUPAC name is 4-amino-1-[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one, hydrochloride.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-amino-1-[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one, hydrochloride
CAS number
21028-03-5 CAS number cross-checkedOther or deprecated CAS: 69-74-9
Molecular formula
C9H14ClN3O5
InChIKey
KCURWTAZOZXKSJ-UHFFFAOYSA-N
InChI
InChI=1S/C9H13N3O5.ClH/c10-5-1-2-12(9(16)11-5)8-7(15)6(14)4(3-13)17-8;/h1-2,4,6-8,13-15H,3H2,(H2,10,11,16);1H
SMILES (canonical and isomeric)
C1=CN(C(=O)N=C1N)C2C(C(C(O2)CO)O)O.Cl

Synonyms

  • Cytosine, monohydrochloride
  • Cytosine beta-D-arabinofuranoside hydrochloride
  • Arabinosyl cytosine hydrochloride
  • C9H14ClN3O5
  • Arabinosylcytosin
  • cytidine, chloride
  • Cytosine ?-D-arabinofuranoside hydrochloride
  • Cytosine-b-D-arabinofuranoside hydrochloride
  • Cytosine, hydrochloride
  • Ara-cytidine hydrochloride
  • Cytosine, monhydrochloride
  • Spongocytidine-hydrochloride
  • 1beta-D-Arabinofuranosylcytosine hydrochloride
  • 1-(beta-d-arabino-furanosyl)-cytosine hydrochloride
  • 1beta-D-Arabinofuranosylcytosine monohydrochloride
  • 4-amino-1-[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one, hydrochloride
  • 4-Imino-1-pentofuranosyl-1,4-dihydropyrimidin-2-ol--hydrogen chloride (1/1)
  • 4-Amino-1-((2R,3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)-tetrahydrofuran-2-yl)pyrimidin-2(1H)-one hydrochloride
  • 4-amino-1-[3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl]pyrimidin-2-one, hydrochloride

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
279.68 g/molcalc.
Exact mass
279.0622 Dacalc.
LogP (octanol/water)
-2.14calc.
Topological polar surface area
130.8 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
7calc.
Rotatable bonds
2calc.
Heavy atoms
18calc.
Rings
2calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.56calc.
Formal charge
0calc.
Stereocentres
4calc.
Components
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

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.

Cylocide suppliers

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Where suppliers are based

1 supplier in 1 country

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Cylocide 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

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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 Cylocide 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 Cylocide is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Cylocide?

Cylocide is a chemical substance with the molecular formula C9H14ClN3O5 and a molar mass of 279.68 g/mol. Its CAS registry number is 21028-03-5. The IUPAC name is 4-amino-1-[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one, hydrochloride.

What is the CAS number of Cylocide?

The CAS registry number of Cylocide is 21028-03-5. Other or deprecated CAS numbers: 69-74-9.

What is the molecular formula and weight of Cylocide?

The molecular formula of Cylocide is C9H14ClN3O5 and its molar mass is 279.68 g/mol.

Is Cylocide hazardous?

No GHS hazard classification for Cylocide 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 Cylocide?

Cylocide 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 Cylocide?

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

What is the price of Cylocide?

Suppliers quote Cylocide 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 Cylocide

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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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