4-amino-[35S]benzenesulfonic acid is a chemical compound that features a benzene ring with a sulfonic acid group attached to the 4-position and an amino group at the same position. The presence of the [35S] label indicates that the sulfur atom in the sulfonic acid group is isotopically enriched with sulfur-35, which is a stable isotope of sulfur. 4-amino-[³⁵S]benzenesulfonic acid is often used in biochemical research, particularly in studies involving sulfur-containing compounds or in applications where the sulfur isotope can be tracked or detected, such as in mass spectrometry or radiotracer studies. The sulfonic acid group provides the molecule with acidic properties, while the amino group contributes basic characteristics, making it a potentially useful compound in various chemical and biological assays.

2025-64-1

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Basic information
1. Product Name: 4-amino-[³⁵S]benzenesulfonic acid
2. Synonyms:
3. CAS NO:2025-64-1
4. Molecular Formula:
5. Molecular Weight: 176.126
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-amino-[³⁵S]benzenesulfonic acid(CAS DataBase Reference)
10. NIST Chemistry Reference: 4-amino-[³⁵S]benzenesulfonic acid(2025-64-1)
11. EPA Substance Registry System: 4-amino-[³⁵S]benzenesulfonic acid(2025-64-1)
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: 2025-64-1(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 2025-64-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,2 and 5 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 2025-64:
(6*2)+(5*0)+(4*2)+(3*5)+(2*6)+(1*4)=51
51 % 10 = 1
So 2025-64-1 is a valid CAS Registry Number.

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121-57-3 4-aminobenzene sulfonic acid

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