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42928-43-8

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42928-43-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42928-43-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,9,2 and 8 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 42928-43:
(7*4)+(6*2)+(5*9)+(4*2)+(3*8)+(2*4)+(1*3)=128
128 % 10 = 8
So 42928-43-8 is a valid CAS Registry Number.

42928-43-8Relevant articles and documents

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Brown,DeLue

, p. 311 (1974)

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A versatile synthesis of 9-BBN derivatives from organometallic reagents and 9-(triisopropylsilyl)thio-9-borabicyclo[3.3.1]nonane

Soderquist, John A.,Justo De Pomar, Jorge C.

, p. 3537 - 3539 (2007/10/03)

Representative B-substituted-9-BBNs (3) are efficiently prepared from either organolithium or Grignard reagents through their addition to (TIPS)S- 9-BBN (1) which is readily available from TIPSSH and 9-BBN-H. The thermally induced collapse of the intermediate 'ate' complexes (2) produces 3 which is easily isolated in good yield and high purity. (C) 2000 Elsevier Science Ltd.

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