4-Chloro-1,2,5-thiadiazole-3-carboxylic acid is a chemical compound with the molecular formula C2HClN2O2S. It is a derivative of 1,2,5-thiadiazole, a five-membered heterocyclic ring containing sulfur, nitrogen, and carbon atoms. This specific compound features a chlorine atom at the 4-position, a carboxylic acid group at the 3-position, and a double bond between the 2 and 5 positions. It is a white crystalline solid with a melting point of 195-197°C. 4-chloro-1,2,5-thiadiazole-3-carboxylic acid is primarily used as an intermediate in the synthesis of various pharmaceuticals, agrochemicals, and other chemical products. Due to its reactivity and functional groups, it can be further modified to create a range of different compounds with diverse applications.

5097-44-9

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Basic information
1. Product Name: 4-chloro-1,2,5-thiadiazole-3-carboxylic acid
2. Synonyms: 4-chloro-1,2,5-thiadiazole-3-carboxylic acid
3. CAS NO:5097-44-9
4. Molecular Formula: C3HClN2O2S
5. Molecular Weight: 164.57024
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 5097-44-9.mol
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: /
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: 4-chloro-1,2,5-thiadiazole-3-carboxylic acid(CAS DataBase Reference)
10. NIST Chemistry Reference: 4-chloro-1,2,5-thiadiazole-3-carboxylic acid(5097-44-9)
11. EPA Substance Registry System: 4-chloro-1,2,5-thiadiazole-3-carboxylic acid(5097-44-9)
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: 5097-44-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 5097-44-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,0,9 and 7 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 5097-44:
(6*5)+(5*0)+(4*9)+(3*7)+(2*4)+(1*4)=99
99 % 10 = 9
So 5097-44-9 is a valid CAS Registry Number.

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