Molekula
5-Iodo-2-deoxyuridine
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
5-Iodo-2-deoxyuridine is a nucleoside analog used in molecular biology for DNA labeling and incorporation studies. It serves as a thymidine replacement in DNA synthesis, enabling detection and tracking of newly synthesized DNA. It is also the active ingredient in idoxuridine antiviral medicines and is used in research as a DNA synthesis inhibitor. Available with a purity of ≥98%, it has a molecular weight of 354.10 g/mol, a CAS number of 54-42-2, and a molecular formula of C9H11IN2O5. Store at 2 to 8 °C. Molekula supplies 5-Iodo-2-deoxyuridine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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1 g — £49.20 per pack ex VAT · £59.04 inc. VAT
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5 g — £154.30 per pack ex VAT · £185.16 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Specific rotation | +25 to +30 |
| Heavy metals | ≤ 0.001% |
| Loss on Drying | ≤ 1.0% |
| Residue on Ignition | ≤ 0.3% |
| Assay (UV) | 98.0 - 102.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 164 - 166 °C |
| Water Solubility | 2 g/L at 25 °C |
| pKa | pKa = 8.25 |
| log P (octanol/water) | -0.96 |
Source: PubChem CID 5905 (Human Metabolome Database (HMDB), HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 27287319 |
| CAS Number | 54-42-2 |
| IUPAC Name | 1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-iodopyrimidine-2,4-dione |
| EC Number | 200-207-8 |
| Molecular Formula | C9H11IN2O5 |
| Molecular Weight | 354.10 |
| Exact Mass | 353.9713 |
| SMILES | C1[C@@H]([C@H](O[C@H]1N2C=C(C(=O)NC2=O)I)CO)O |
| InChIKey | XQFRJNBWHJMXHO-RRKCRQDMSA-N |
| InChI | InChI=1S/C9H11IN2O5/c10-4-2-12(9(16)11-8(4)15)7-1-5(14)6(3-13)17-7/h2,5-7,13-14H,1,3H2,(H,11,15,16)/t5-,6+,7+/m0/s1 |
| PubChem CID | 5905 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2934.99.9001 |
| Tariff Code | 2934999090 |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H341 Suspected of causing genetic defects
- H361 Suspected of damaging fertility or the unborn child
- H362 May cause harm to breast-fed children
Precautionary statements
- P201 Obtain special instructions before use
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P281 Use personal protective equipment as required
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 2'-Deoxy-5-iodouridine
- 5-Iododeoxyuridine
- Herplex
- Idoxuridin
- idoxuridine
- Iododeoxyridine
- Iodoxuridine
- IUDR
- Joddeoxiuridin
- Stoxil
Frequently asked questions
What is 5-Iodo-2-deoxyuridine used for?
It is primarily used in nucleic acid research as a thymidine analog for labeling DNA, particularly in studies involving DNA synthesis and replication.
What is the chemical formula and molecular weight of 5-Iodo-2-deoxyuridine?
The formula is C9H11IN2O5 with a molecular weight of 354.10 g/mol.
How should 5-Iodo-2-deoxyuridine be stored?
It should be stored at 2 to 8 °C, protected from light and moisture.
What grade is available for 5-Iodo-2-deoxyuridine?
It is available in research grade, suitable for laboratory use in biochemical and molecular biology applications.
Can Molekula supply 5-Iodo-2-deoxyuridine in bulk?
Yes, Molekula can supply 5-Iodo-2-deoxyuridine in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with an order of 5-Iodo-2-deoxyuridine?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), with additional documentation available upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.