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75057-18-0

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75057-18-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75057-18-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,0,5 and 7 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 75057-18:
(7*7)+(6*5)+(5*0)+(4*5)+(3*7)+(2*1)+(1*8)=130
130 % 10 = 0
So 75057-18-0 is a valid CAS Registry Number.

75057-18-0Downstream Products

75057-18-0Relevant articles and documents

Synthesis of Benzoquinazoline-2,4-diones via Lossen Rearrangement of N-(Arylsulphonyloxy)naphthalene-2,3-dicarboximide Derivatives

Hamed, A. A.,El-Bieh, A. A.,Baddawy, H. A.,Metwally, R. N.

, p. 221 - 223 (2007/10/02)

Treatment of N-(arylsulphonyloxy)-1-phenylnaphthalene-2,3-dicarboximides (IIa, b) with ammonia, aromatic amines, amino acids and hydrazine hydrate brings about the imide ring opening followed by Lossen rearrangement to give benzoquinazoline-2,4-diones (IIIa-h) and the salts of arylsulphonic acids (IVa-p).

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