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 1999 · 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
In stock — same-day dispatch
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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
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.