Rheumatoid factor (RF) is an autoantibody found in the blood of individuals with rheumatoid arthritis (RA), an autoimmune disease characterized by chronic inflammation in the joints. RF is produced by the immune system and targets the Fc region of immunoglobulin G (IgG) antibodies, leading to the formation of immune complexes that can trigger inflammation and joint damage. While RF is not exclusive to RA and can be present in other autoimmune conditions or even healthy individuals, its presence is often indicative of RA and can be used as a diagnostic tool. The presence of RF is associated with a more severe form of RA, and its levels can be monitored to assess disease activity and response to treatment.

9009-79-4

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Basic information
1. Product Name: RHEUMATOID FACTOR
2. Synonyms: Rheumatoidfactor; Polyclonal rheumatoid factors; Rheumatoid factors, polyclonal
3. CAS NO:9009-79-4
4. Molecular Formula:
5. Molecular Weight: 0
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: /
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: RHEUMATOID FACTOR(CAS DataBase Reference)
10. NIST Chemistry Reference: RHEUMATOID FACTOR(9009-79-4)
11. EPA Substance Registry System: RHEUMATOID FACTOR(9009-79-4)
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: 9009-79-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 9009-79-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 9,0,0 and 9 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 9009-79:
(6*9)+(5*0)+(4*0)+(3*9)+(2*7)+(1*9)=104
104 % 10 = 4
So 9009-79-4 is a valid CAS Registry Number.

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