15N⁴-labeled cytosine is a type of cytosine that has been labeled with the isotope nitrogen-15 (15N) at four of its nitrogen atoms. This labeling is used in various biochemical and molecular biology experiments to track the incorporation and metabolism of cytosine within biological systems. The use of 15N allows researchers to distinguish between labeled and unlabeled cytosine molecules through techniques such as mass spectrometry, which can detect the difference in mass due to the heavier isotope. This is particularly useful in studies involving DNA synthesis, repair, and gene expression, where understanding the dynamics of nucleotide incorporation is crucial. The labeled cytosine can be incorporated into DNA during replication or transcription, providing a means to monitor these processes and study their regulation.

3920-45-4

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Basic information
1. Product Name: 15N⁴-labeled cytosine
2. Synonyms: 15N⁴-labeled cytosine
3. CAS NO:3920-45-4
4. Molecular Formula:
5. Molecular Weight: 112.096
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: 15N⁴-labeled cytosine(CAS DataBase Reference)
10. NIST Chemistry Reference: 15N⁴-labeled cytosine(3920-45-4)
11. EPA Substance Registry System: 15N⁴-labeled cytosine(3920-45-4)
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: 3920-45-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 3920-45-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,2 and 0 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 3920-45:
(6*3)+(5*9)+(4*2)+(3*0)+(2*4)+(1*5)=84
84 % 10 = 4
So 3920-45-4 is a valid CAS Registry Number.

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