Cas 251902-80-4,dimethyl spiro[9H-fluorene-9,5'-[1,3,4]thiadiazolidine]-3,4-dicarboxylate

251902-80-4

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Basic information

Product Name: dimethyl spiro[9H-fluorene-9,5'-[1,3,4]thiadiazolidine]-3,4-dicarboxylate
Synonyms: dimethyl spiro[9H-fluorene-9,5'-[1,3,4]thiadiazolidine]-3,4-dicarboxylate
CAS NO:251902-80-4
Molecular Formula: C18H16N2O4S
Molecular Weight: 356.39564
EINECS: N/A
Product Categories: N/A
Mol File: 251902-80-4.mol

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: /
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: dimethyl spiro[9H-fluorene-9,5'-[1,3,4]thiadiazolidine]-3,4-dicarboxylate(CAS DataBase Reference)
NIST Chemistry Reference: dimethyl spiro[9H-fluorene-9,5'-[1,3,4]thiadiazolidine]-3,4-dicarboxylate(251902-80-4)
EPA Substance Registry System: dimethyl spiro[9H-fluorene-9,5'-[1,3,4]thiadiazolidine]-3,4-dicarboxylate(251902-80-4)

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: 251902-80-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 251902-80-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,1,9,0 and 2 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 251902-80:
(8*2)+(7*5)+(6*1)+(5*9)+(4*0)+(3*2)+(2*8)+(1*0)=124
124 % 10 = 4
So 251902-80-4 is a valid CAS Registry Number.

251902-80-4Upstream product

251902-80-4Downstream Products

251902-80-4Relevant academic research and scientific papers

Thiocarbonyl ylides and electrophilic azo compounds; sterically hindered cyclic hydrazodicarboxylic esters

Huisgen, Rolf,Li, Xingya,Mloston, Grzegorz,Knorr, Rudolf,Huber, Helmut,Stephenson, David S.

, p. 12783 - 12796 (1999)

The cycloadduct 5, prepared from adamantanethione S-methylide with dimethyl azodicarboxylate, exists in solution in two conformations P and Q (70:30 in CDCl3), which are separated by a barrier of ΔC≠ 18.3 ± 0.6 kcal mol-1; according

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