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118045-17-3

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118045-17-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 118045-17-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,0,4 and 5 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 118045-17:
(8*1)+(7*1)+(6*8)+(5*0)+(4*4)+(3*5)+(2*1)+(1*7)=103
103 % 10 = 3
So 118045-17-3 is a valid CAS Registry Number.

118045-17-3Downstream Products

118045-17-3Relevant articles and documents

SYNTHESIS OF 1,4-BENZODIAZEPINES AND QUINAZOLINES BASED ON CROWNED o-AMINO KETONES

Ivanov, E.I.,Polishchuk, A.A.,Ivanova, R.Yu.

, p. 1337 - 1339 (2007/10/02)

Cyclization of the o-amino ketone derivatives of dibenzo-18-crown-6 ether gave the corresponding crown-annelated 1,4-benzodiazepines and quinazolines. 1,4-Benzodiazepines containing the macrocyclic ring were obtained from the initial o-amino ketones and the acid chloride of glycine hydrochloride or bromoacetyl bromide followed by treatment with ammonia.A convenient method for the synthesis of the quinazolines is cyclization of the o-amino ketones in formamide.

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