Cas 305375-45-5,ethyl 2-[(3,4-dimethoxybenzoyl)amino]-5,5-dimethyl-4,7-dihydro-5H-thieno[2,3-c]pyran-3-carboxylate

305375-45-5

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Basic information

Product Name: ethyl 2-[(3,4-dimethoxybenzoyl)amino]-5,5-dimethyl-4,7-dihydro-5H-thieno[2,3-c]pyran-3-carboxylate
Synonyms: ethyl 2-[(3,4-dimethoxybenzoyl)amino]-5,5-dimethyl-4,7-dihydro-5H-thieno[2,3-c]pyran-3-carboxylate;ethyl 2-{[(3,4-dimethoxyphenyl)carbonyl]amino}-5,5-dimethyl-4,7-dihydro-5H-thieno[2,3-c]pyran-3-carboxylate
CAS NO:305375-45-5
Molecular Formula: C21H25NO6S
Molecular Weight: 419.4913
EINECS: N/A
Product Categories: N/A
Mol File: 305375-45-5.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: ethyl 2-[(3,4-dimethoxybenzoyl)amino]-5,5-dimethyl-4,7-dihydro-5H-thieno[2,3-c]pyran-3-carboxylate(CAS DataBase Reference)
NIST Chemistry Reference: ethyl 2-[(3,4-dimethoxybenzoyl)amino]-5,5-dimethyl-4,7-dihydro-5H-thieno[2,3-c]pyran-3-carboxylate(305375-45-5)
EPA Substance Registry System: ethyl 2-[(3,4-dimethoxybenzoyl)amino]-5,5-dimethyl-4,7-dihydro-5H-thieno[2,3-c]pyran-3-carboxylate(305375-45-5)

Safety Data

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Safety Statements: N/A
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RTECS:
HazardClass: N/A
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Hazardous Substances Data: 305375-45-5(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 305375-45-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,5,3,7 and 5 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 305375-45:
(8*3)+(7*0)+(6*5)+(5*3)+(4*7)+(3*5)+(2*4)+(1*5)=125
125 % 10 = 5
So 305375-45-5 is a valid CAS Registry Number.

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305375-45-5Relevant academic research and scientific papers

Derivatives of condensed thieno[2,3-d]pyrimidines. 15*. Synthesis of 2-substituted 3-amino-6,6-dimethyl-5,6-dihydro-8H-pyrano[4′,3′:4,5]-thieno[2, 3-d]pyrimidin-4-ones

Mkrtchyan,Noravyan,Petrosyan

, p. 238 - 241 (2002)

A method has been developed for the preparation of 2-R-substituted 3-amino-6,6-dimethyl-5,6-dihydro-8H-pyrano[4′,3′:4,5]thieno[2, 3-d]pyrimidin-4-ones based on 2-R-amino-3-ethoxycarbonylpyrano-[2,3-c]thiophenes. It has been established that their cyclization with hydrazine hydrate requires vigorous conditions.

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