4-carboxy-3-p-tolyl-sydnone is a chemical compound with the molecular formula C₁₀H₉NO₃. It is a sydnone derivative, which is a class of organic compounds characterized by a 1,2,4-oxadiazine ring system. This particular compound features a carboxylic acid group (-COOH) at the 4-position, a p-tolyl group (a methyl group attached to the para position of a phenyl ring) at the 3-position, and a sydnone ring system. It is known for its potential applications in the synthesis of various pharmaceuticals and agrochemicals due to its unique chemical structure and reactivity. The compound can be synthesized through various methods, including the condensation of appropriate precursors, and is often used as an intermediate in the preparation of more complex molecules.

4918-28-9

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Basic information
1. Product Name: 4-carboxy-3-p-tolyl-sydnone
2. Synonyms:
3. CAS NO:4918-28-9
4. Molecular Formula:
5. Molecular Weight: 220.185
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-carboxy-3-p-tolyl-sydnone(CAS DataBase Reference)
10. NIST Chemistry Reference: 4-carboxy-3-p-tolyl-sydnone(4918-28-9)
11. EPA Substance Registry System: 4-carboxy-3-p-tolyl-sydnone(4918-28-9)
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: 4918-28-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 4918-28-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,1 and 8 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 4918-28:
(6*4)+(5*9)+(4*1)+(3*8)+(2*2)+(1*8)=109
109 % 10 = 9
So 4918-28-9 is a valid CAS Registry Number.

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