Cas 136829-45-3,(4,4-dicyano-4,5-dihydro-2-hydroxy-5-oxoindeno<1,2-b> pyran-3-yl) triphenylphosphonium hydroxide inner salt

136829-45-3

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Basic information

Product Name: (4,4-dicyano-4,5-dihydro-2-hydroxy-5-oxoindeno<1,2-b> pyran-3-yl) triphenylphosphonium hydroxide inner salt
Synonyms:
CAS NO:136829-45-3
Molecular Formula:
Molecular Weight: 510.488
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: (4,4-dicyano-4,5-dihydro-2-hydroxy-5-oxoindeno<1,2-b> pyran-3-yl) triphenylphosphonium hydroxide inner salt(CAS DataBase Reference)
NIST Chemistry Reference: (4,4-dicyano-4,5-dihydro-2-hydroxy-5-oxoindeno<1,2-b> pyran-3-yl) triphenylphosphonium hydroxide inner salt(136829-45-3)
EPA Substance Registry System: (4,4-dicyano-4,5-dihydro-2-hydroxy-5-oxoindeno<1,2-b> pyran-3-yl) triphenylphosphonium hydroxide inner salt(136829-45-3)

Safety Data

Hazard Codes: N/A
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Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
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Hazardous Substances Data: 136829-45-3(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 136829-45-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,8,2 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 136829-45:
(8*1)+(7*3)+(6*6)+(5*8)+(4*2)+(3*9)+(2*4)+(1*5)=153
153 % 10 = 3
So 136829-45-3 is a valid CAS Registry Number.

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136829-45-3Relevant academic research and scientific papers

CHEMISTRY OF PHOSPHOROUS YLIDES 10 REACTION WITH PHOSPHACUMULENES IV. SYNTHESIS OF PYRAN, PHOSPHORANYLIDENE, OXAPHOSPHORIN AND OXAZAPHOSPHORIN FROM THE REACTION OF 1,3-DIOXO-Δ2,α-INDANEMALONONITRILE WITH PHOSPHORANES AND IMINOPHOSPHORANES

Soliman, Fouad M.,Said, Medhat M.

, p. 335 - 340 (2007/10/02)

1,3-Dioxo-Δ2,α-indanmalononitrile (1) reacts with the active ketenylidene-(2a) and thioketenylidenetriphenyl phosphorane (2b) to give the corresponding pyrans 3 (X=O or S).The reaction of pyran 3 with p-nitroaldehyde proceeds according to the W

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