1. product basic information table
| Name | 4,6-Dichloro-N-(methyl-d3)-3-pyriridazinecarboxamide |
| Alias | 3-Pyridanzinecarboxamide,4,6-dichloro-N-(methyl-d3);BMS-986165 Related Compound 5;Deucravacitinib Impurity 10;4,6-Dichloro-N-methylpyridazine-3-carboxamide-d3;4,6-dichloro-N-trideuteriomethylpyridazine-3-carboxamide |
| CAS No. | 1609393-89-6 |
| chemical formula | C₆H₂Cl₂D₃N₃O |
| molecular weight | 209.05 g/mol |
| InChI | InChI=1S/C₆H₅Cl₂N₃O/c1-9-6(12)5-3(7)2-4(8)10-11-5/h2H,1H3,(H,9,12)/i1D3 |
| density | 1.470±0.06g/cm³(25°C, predicted) |
| boiling Point | 401.5±45.0°C(760 Torr, predicted) |
| water soluble | slightly soluble in water; Soluble in DMSO(100 mg/mL, ultrasound-assisted solution), methanol, ethanol and other polar organic solvents |
| storage conditions | -20°C to 2-8°C, sealed and protected from moisture, inert atmosphere (nitrogen or argon) is recommended |
| sensitivity | sensitive to humidity (hygroscopic), water in DMSO can significantly affect its solubility |
| appearance | solid powder |
| color | yellow to Brown/Grey to Brown |
| MDL No. | MFCD32263322 |
| dangerous Goods Signs | GHS07 (exclamation point, irritant)/ GHS06 (skull, acute toxicity) |
| risk Terms | H302 (harmful if swallowed);H315 (causes skin irritation);H319 (causes severe eye irritation);H335 (may cause respiratory irritation) |
| safety terminology | P261 (avoid inhaling dust/smoke);P280 (wear protective gloves/goggles/face mask);P302 + P352 (rinse with water after skin contamination);P305 + P351 + P338 (rinse with water for several minutes after entering eyes);P304 + P340 (move to fresh air after inhalation) |
| customs Number | 2933990090 (other nitrogen-containing heterocyclic compounds)/ 29252900 (other amides) |
2.nature
4,6-Dichloro-N-(methyl-d3)-3-pyridazinecarboxamide is a deuterated-labeled pyridazine heterocyclic compound, CAS number 1609393-89-6, molecular formula, and molecular weight 209.05. In its molecular structure, the 3-position of the pyridazine ring is connected to the formamide group, the methyl group on the amide nitrogen is fully deuterated methyl (-CD), and the 4 and 6 positions are substituted by chlorine atoms. This compound is a deuterated isotope label of its non-deuterated parent 4,6-dichloro-N-methylpyridazine-3-carboxamide (CAS: 1609394-78-6). The introduction of deuteration makes it have a different mass-to-charge ratio (m/z) from the parent compound in mass spectrometry analysis, which is convenient for quantitative analysis as an internal standard. The product is usually a yellow to brownish gray solid powder with a calculated water solubility of about 1.95-3.45 mg/mL(ESOL/Ali model). It is sensitive to humidity and needs to be stored in a low-temperature sealed and inert atmosphere.
3. uses
1.
Key intermediate/impurity reference substance of deuterocoletinib (Deucravacitinib,BMS-986165): deuterocoletinib is a new oral selective TYK2 inhibitor developed by Brist-Myers Squibb. The deuterated compound is an important isotope labeled intermediate in its synthesis route and is also a reference substance standard substance for Deucravacitinib Impurity 10 and BMS-986165 Related Compound 5
2.
Drug metabolism and pharmacokinetics: as a deuterated internal standard, used for LC-MS/MS method development, quantitative analysis of biological samples and metabolic pathway research.
3.
Stable isotope labeling and tracer experiments: for new drug molecular structure modification and optimization, reaction mechanism research and other scientific research purposes.
4. safety information
this product is an irritating chemical. The operation should strictly abide by the laboratory safety regulations: wear protective gloves, goggles and laboratory clothes, operate in the fume hood, avoid inhaling dust, contact with skin and eyes; if accidentally contacted, immediately rinse with plenty of water according to the corresponding P phrase and seek medical treatment. Store sealed at 2-8°C (or -20°C) in a dry, inert atmosphere, away from oxidizing agents and sources of ignition. Wastes shall be disposed in accordance with chemical waste specifications. Please refer to the complete SDS before operation.
5. our production advantages and capacity
the deuteration technology platform is mature: our company has a perfect stable isotope (deuteration) compound synthesis and purification platform, the deuteration rate is stable up to 98% atom%D, the product purity is ≥ 99%, and the batch consistency is excellent.
Strict control of impurity mass spectrum: as the core intermediate of deuterium lexicotinib, our company has established a complete impurity mass spectrum research and quality control system, which can provide a complete set of detection data such as HPLC, LC-MS, NMR, elemental analysis and COA to support the registration application requirements.
Large-scale production capacity: the existing production line from kg to 100kg, with an annual production capacity of up to ton, can provide a full chain supply from gram-level customization to ton-level volume according to customer demand, with short delivery cycle and sufficient spot.
Customized R & D services: Support one-stop services such as process route optimization, customized synthesis of impurities, and in-depth customization of isotope labeling, and the technical team will follow up the whole process.
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welcome to visit our official website for more product information and cooperation details: https://www.shlzpharma.com/
Post time: Oct-17-2026
