Cas 203-93-0,naphtho<1,8-b,c>thiopyran

203-93-0

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Basic information

Product Name: naphtho<1,8-b,c>thiopyran
Synonyms: naphtho<1,8-b,c>thiopyran
CAS NO:203-93-0
Molecular Formula:
Molecular Weight: 184.262
EINECS: N/A
Product Categories: N/A

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: naphtho<1,8-b,c>thiopyran(CAS DataBase Reference)
NIST Chemistry Reference: naphtho<1,8-b,c>thiopyran(203-93-0)
EPA Substance Registry System: naphtho<1,8-b,c>thiopyran(203-93-0)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 203-93-0(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 203-93-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 2,0 and 3 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 203-93:
(5*2)+(4*0)+(3*3)+(2*9)+(1*3)=40
40 % 10 = 0
So 203-93-0 is a valid CAS Registry Number.

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203-93-0Downstream Products

203-93-0Relevant academic research and scientific papers

HIGH-TEMPERATURE ORGANIC SYNTHESIS. XXXVII. THERMAL REACTIONS OF 1-NAPHTHYLTHIYL RADICALS WITH ACETYLENE

Russavskaya, N. V.,Sukhomazova, E. N.,Korchevin, N. A.,Deryagina, E. N.,Voronkov, M. G.

, p. 1531 - 1534 (2007/10/02)

Naphthylthiyl radicals 1-C10H7S, generated during the thermolysis of 1-C10H7SH, (1-C10H7)2S2, and 1-C10H7SCH2CH=CH2 and also from the 1-C10H7X-H2S system (X = Cl, Br), react with acetylene at 410-700 deg C, forming naphthothiophene and naphthothiopyran.Under certain conditions the yield of each of these difficulty obtainable heterocycles under certain conditions amounts to 47 and 60percent respectively.

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