Cas 157662-73-2,9,12-Dioxo-2-oxa-18-nitro-10,13-diazatricyclo<14.2.2.1<sup>3,7</sup>>heneicosa-3,5,7(21),16,18,19-hexaene

157662-73-2

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Basic information

Product Name: 9,12-Dioxo-2-oxa-18-nitro-10,13-diazatricyclo<14.2.2.1^3,7>heneicosa-3,5,7(21),16,18,19-hexaene
Synonyms: 9,12-Dioxo-2-oxa-18-nitro-10,13-diazatricyclo<14.2.2.1^3,7>heneicosa-3,5,7(21),16,18,19-hexaene
CAS NO:157662-73-2
Molecular Formula:
Molecular Weight: 355.35
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: 9,12-Dioxo-2-oxa-18-nitro-10,13-diazatricyclo<14.2.2.1^3,7>heneicosa-3,5,7(21),16,18,19-hexaene(CAS DataBase Reference)
NIST Chemistry Reference: 9,12-Dioxo-2-oxa-18-nitro-10,13-diazatricyclo<14.2.2.1^3,7>heneicosa-3,5,7(21),16,18,19-hexaene(157662-73-2)
EPA Substance Registry System: 9,12-Dioxo-2-oxa-18-nitro-10,13-diazatricyclo<14.2.2.1^3,7>heneicosa-3,5,7(21),16,18,19-hexaene(157662-73-2)

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: 157662-73-2(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 157662-73-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,6,6 and 2 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 157662-73:
(8*1)+(7*5)+(6*7)+(5*6)+(4*6)+(3*2)+(2*7)+(1*3)=162
162 % 10 = 2
So 157662-73-2 is a valid CAS Registry Number.

157662-73-2Upstream product

42564-51-2 4-fluoro-3-nitrobenzaldehyde

157662-73-2Downstream Products

157662-73-2Relevant academic research and scientific papers

The first examples of S(N)Ar-based macrocyclisation: Synthesis of model carboxylate-binding pockets of vancomycin

Beugelmans,Zhu,Husson,Bois-Choussy,Singh

, p. 439 - 440 (1994)

Model carboxylate-binding pocket C-O-D rings of vancomycin and related glycopeptides were efficiently synthesized by intramolecular S(N)Ar reaction.

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