6-Chloro-7-methyl-3-(1-oxonaphtho[2,1-b]thiophen-2(1H)-ylidene)-1H-indol-2(3H)-one is a complex organic compound with a molecular formula of C18H10ClNO2S. It is characterized by a unique structure that includes a naphtho[2,1-b]thiophene ring system, an indole ring, and a methyl group. The compound features a chlorine atom at the 6-position and a carbonyl group at the 1-position of the naphtho[2,1-b]thiophene ring. This chemical is known for its potential applications in the field of pharmaceuticals and materials science, particularly in the development of new drugs and advanced materials. Its synthesis and properties are of interest to researchers due to its structural complexity and the possibility of exploring its reactivity and biological activity.

6424-70-0

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Basic information
1. Product Name: 6-Chloro-7-methyl-3-(1-oxonaphtho[2,1-b]thiophen-2(1H)-ylidene)-1H-indol-2(3H)-one
2. Synonyms: 6-Chloro-7-methyl-3-(1-oxonaphtho[2,1-b]thiophen-2(1H)-ylidene)-1H-indol-2(3H)-one;Algol Brown FFR;C.I.73680;Helindon Brown 3R;Indanthren Printing Brown 3R
3. CAS NO:6424-70-0
4. Molecular Formula: C21H12ClNO2S
5. Molecular Weight: 377.84
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 6424-70-0.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: 6-Chloro-7-methyl-3-(1-oxonaphtho[2,1-b]thiophen-2(1H)-ylidene)-1H-indol-2(3H)-one(CAS DataBase Reference)
10. NIST Chemistry Reference: 6-Chloro-7-methyl-3-(1-oxonaphtho[2,1-b]thiophen-2(1H)-ylidene)-1H-indol-2(3H)-one(6424-70-0)
11. EPA Substance Registry System: 6-Chloro-7-methyl-3-(1-oxonaphtho[2,1-b]thiophen-2(1H)-ylidene)-1H-indol-2(3H)-one(6424-70-0)
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: 6424-70-0(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 6424-70-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,2 and 4 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 6424-70:
(6*6)+(5*4)+(4*2)+(3*4)+(2*7)+(1*0)=90
90 % 10 = 0
So 6424-70-0 is a valid CAS Registry Number.

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