4-Chloropyridazine 1-oxide is a chemical compound with the molecular formula C4H2ClN3O. It is a derivative of pyridazine, a heterocyclic aromatic compound consisting of a six-membered ring with two nitrogen atoms. The 1-oxide functional group is attached to the nitrogen atom at the first position, while a chlorine atom is present at the fourth position. 4-chloropyridazine 1-oxide is often used as an intermediate in the synthesis of various pharmaceuticals, agrochemicals, and other organic compounds due to its unique reactivity and stability. It is typically synthesized through various methods, such as the oxidation of 4-chloropyridazine or the chlorination of pyridazine 1-oxide. 4-Chloropyridazine 1-oxide is a white crystalline solid and is sensitive to light and moisture, requiring proper storage conditions to maintain its stability.

7217-74-5

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Basic information
1. Product Name: 4-chloropyridazine 1-oxide
2. Synonyms:
3. CAS NO:7217-74-5
4. Molecular Formula:
5. Molecular Weight: 130.534
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: N/A
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: 4-chloropyridazine 1-oxide(CAS DataBase Reference)
10. NIST Chemistry Reference: 4-chloropyridazine 1-oxide(7217-74-5)
11. EPA Substance Registry System: 4-chloropyridazine 1-oxide(7217-74-5)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 7217-74-5(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 7217-74-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,2,1 and 7 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 7217-74:
(6*7)+(5*2)+(4*1)+(3*7)+(2*7)+(1*4)=95
95 % 10 = 5
So 7217-74-5 is a valid CAS Registry Number.

7217-74-5Upstream product

71246-74-7 4-(3-cyano-1-triazeno)pyridazine 1-oxide potassium salt

7217-74-5Downstream Products

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