Cas 21681-31-2,;; see 5,12:6,11-Diepoxydibenzo[b,h]- biphenylene,5,5a,5b,6,11,11a,11b,12-octahydro- ,(5R,5aS,5bS,6R,11S,11aR,11bR,12S)-rel-

21681-31-2

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Basic information

Product Name: ;; see 5,12:6,11-Diepoxydibenzo[b,h]- biphenylene,5,5a,5b,6,11,11a,11b,12-octahydro- ,(5R,5aS,5bS,6R,11S,11aR,11bR,12S)-rel-
Synonyms:
CAS NO:21681-31-2
Molecular Formula:
Molecular Weight: 288.346
EINECS: N/A
Product Categories: N/A
Mol File: 21681-31-2.mol

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: ;; see 5,12:6,11-Diepoxydibenzo[b,h]- biphenylene,5,5a,5b,6,11,11a,11b,12-octahydro- ,(5R,5aS,5bS,6R,11S,11aR,11bR,12S)-rel- (CAS DataBase Reference)
NIST Chemistry Reference: ;; see 5,12:6,11-Diepoxydibenzo[b,h]- biphenylene,5,5a,5b,6,11,11a,11b,12-octahydro- ,(5R,5aS,5bS,6R,11S,11aR,11bR,12S)-rel- (21681-31-2)
EPA Substance Registry System: ;; see 5,12:6,11-Diepoxydibenzo[b,h]- biphenylene,5,5a,5b,6,11,11a,11b,12-octahydro- ,(5R,5aS,5bS,6R,11S,11aR,11bR,12S)-rel- (21681-31-2)

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: 21681-31-2(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 21681-31-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,6,8 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 21681-31:
(7*2)+(6*1)+(5*6)+(4*8)+(3*1)+(2*3)+(1*1)=92
92 % 10 = 2
So 21681-31-2 is a valid CAS Registry Number.

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21681-31-2Relevant academic research and scientific papers

Nickel-catalyzed regio- and diastereoselective intermolecular three-component coupling of oxabicyclic alkenes with alkynes and organoboronic acids

Mannathan, Subramaniyan,Cheng, Chien-Hong

, p. 1557 - 1559 (2013)

Reaction of oxabicyclic alkenes with alkynes and organoboronic acids in the presence of Ni(cod)2, P(t-Bu)3, and CsF in a binary solvent toluene-methanol (1 : 3) at 75 to 85 °C provided exo-5,6-disubstituted 7-oxanorbornene derivatives in good to excellent yields. The Royal Society of Chemistry 2013.

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