HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 40468288Generated: November 3, 2026
4-Amino-3,5-diiodopyridine
3,5-Diiodopyridin-4-amine · 3,5-diiodo-4-aminopyridine · 3,4-diiodo-4-aminopyridine · 4-Amino-3,5-diiodopyridine · 4-Pyridinamine, 3,5-diiodo- · Pyridine,4-aMino-3,5-diiodo- · 4-AMINO-3,5-DIIODOPYRIDINE ISO 9001：2015 REACH
https://huagongshe.com/en/chemical/40468288
Identifiers & Physical Properties
| CAS No. | 98136-86-8 |
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| Molecular formula | C5H4I2N2 |
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| Average molar mass | 345.91 g/mol |
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| Monoisotopic mass | 345.84639 g/mol |
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| SMILES | Nc1c(I)cncc1I |
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| InChIKey | XDDQGODHCQZZEH-UHFFFAOYSA-N |
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| PubChem CID | 40468288 |
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| EC No. | 689-301-1 |
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| DTXSID | DTXSID40654425 |
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Chemical & Physical Properties
| XLogP | 1.5 |
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| Topological polar surface area | 38.9 |
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| Hydrogen bond donors | 1 |
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| Hydrogen bond acceptors | 2 |
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| Rotatable bonds | 0 |
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| Heavy atoms | 9 |
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| Formal charge | 0 |
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| Complexity | 89 |
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| Melting point | 135-136℃ |
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| Boiling point | 408.1±45.0 °C(Predicted) |
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| Density | 2.679 |
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| Storage conditions | under inert gas (nitrogen or Argon) at 2–8 °C |
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| pKa (acidity coefficient) | 5.42±0.24(Predicted) |
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| Physical state | solid |
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| Appearance | White to off-white Solid |
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| InChI | 1S/C5H4I2N2/c6-3-1-9-2-4(7)5(3)8/h1-2H,(H2,8,9) |
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| InChIKey | XDDQGODHCQZZEH-UHFFFAOYSA-N |
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| SMILES | IC1=CN=CC(I)=C1N |
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| UNSPSC Code | 12352116 |
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| NACRES | NA.21 |
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| GHS pictogram | GHS07 |
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| Signal word | Warning |
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| GHS hazard statements | H302 |
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| GHS precautionary statements | P280-P305+P351+P338 |
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| Hazard symbols | Xi,Xn |
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| Risk statements (R) | 22 |
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| Water hazard class (WGK) | 3 |
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| Hazard Note | Irritant |
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| Customs code | 2933399990 |
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| Storage class | 11 - Combustible Solids |
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| Hazard class | Acute Tox. 4 Oral |
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Safety & Regulations
| GHS classification | WarningH302 (50%): Harmful if swallowed [Warning Acute toxicity, oral]P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 2 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
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| Hazard Classes and Categories | Acute Tox. 4 (50%) |
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| Water hazard class (WGK) | 3 |
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| Customs code | 2933399990 |
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| Risk statements (R) | 22 |
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| Signal word | Warning |
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| GHS pictogram | GHS07 |
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| Hazard symbols | Xi,Xn |
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| hazard_note | Irritant |
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| Storage class | 11 - Combustible Solids |
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| GHS hazard statements | H302 |
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| Hazard class | Acute Tox. 4 Oral |
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| GHS precautionary statements | P280-P305+P351+P338 |
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