Cyclohexa-1,3-dien-1,4-dicarbonsaeure-dichlorid, also known as 1,4-dichlorophthalic anhydride, is an organic compound with the chemical formula C8H4Cl2O3. It is a derivative of phthalic anhydride, where two hydrogen atoms are replaced by chlorine atoms. This colorless to pale yellow crystalline solid is used as an intermediate in the production of various chemicals, including dyes, pharmaceuticals, and polymers. It is synthesized by reacting phthalic anhydride with chlorine gas in the presence of a catalyst. Due to its reactivity, it is important to handle Cyclohexa-1,3-dien-1,4-dicarbonsaeure-dichlorid with care, as it can be harmful if inhaled or absorbed through the skin.

3855-19-4

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Basic information
1. Product Name: Cyclohexa-1,3-dien-1,4-dicarbonsaeure-dichlorid
2. Synonyms:
3. CAS NO:3855-19-4
4. Molecular Formula:
5. Molecular Weight: 205.04
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: Cyclohexa-1,3-dien-1,4-dicarbonsaeure-dichlorid(CAS DataBase Reference)
10. NIST Chemistry Reference: Cyclohexa-1,3-dien-1,4-dicarbonsaeure-dichlorid(3855-19-4)
11. EPA Substance Registry System: Cyclohexa-1,3-dien-1,4-dicarbonsaeure-dichlorid(3855-19-4)
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: 3855-19-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 3855-19-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,8,5 and 5 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 3855-19:
(6*3)+(5*8)+(4*5)+(3*5)+(2*1)+(1*9)=104
104 % 10 = 4
So 3855-19-4 is a valid CAS Registry Number.

3855-19-4Upstream product

1659-68-3 cyclohexa-1,3-diene-1,4-dicarboxylic acid

3855-19-4Downstream Products

3855-19-4Relevant academic research and scientific papers

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