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1651-34-9

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1651-34-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1651-34-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,5 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1651-34:
(6*1)+(5*6)+(4*5)+(3*1)+(2*3)+(1*4)=69
69 % 10 = 9
So 1651-34-9 is a valid CAS Registry Number.

1651-34-9Downstream Products

1651-34-9Relevant articles and documents

Preparation of Enantiomerically Enriched α-Hydroxystannanes via Enzymatic Resolution

Chong, J. Michael,Mar, Eduardo K.

, p. 5683 - 5686 (1991)

The porcine pancreatic lipase (PPL) catalyzed esterifications of α-hydroxystannanes RCH(OH)SnMe3 (R = Me, Et) and MeCH(OH)SnEt3 with 2,2,2-trifluoroethyl valerate afford good yields and excellent enantiomeric (>95 percent ee) purities of the (S)-valerate and the (R)-α-hydroxystannane.Key Words: α-alkoxystannanes; enantiomerically enriched; enzymatic esterification; porcine pancreatic lipase.

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