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129997-27-9

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129997-27-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129997-27-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,9,9 and 7 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 129997-27:
(8*1)+(7*2)+(6*9)+(5*9)+(4*9)+(3*7)+(2*2)+(1*7)=189
189 % 10 = 9
So 129997-27-9 is a valid CAS Registry Number.

129997-27-9Relevant articles and documents

Sn(IV) Multiporphyrin Arrays as Tunable Photoactive Systems

Amati, Agnese,Cavigli, Paolo,Demitri, Nicola,Natali, Mirco,Indelli, Maria Teresa,Iengo, Elisabetta

, p. 4399 - 4411 (2019)

A series of four arrays made of a central Sn(IV) porphyrin as scaffold axially connected, via carboxylate functions, to two free-base porphyrins has been prepared and fully characterized. Three arrays in the series feature the same free-base unit and alte

Facile C-C bond cleavage of β-diketones by tin(IV) porphyrin complex

Singh, Atul Pratap,Park, Bu Bae,Kim, Hee-Joon

supporting information, p. 6456 - 6459 (2013/01/15)

Reactions of trans-dihydroxo(meso-tetraphenylporphyrinato)tin(IV) [Sn(TPP)(OH)2] with β-diketones such as acetylacetone (1), dibenzoylmethane (2), 1-phenylbutane-1,3-dione (3), or 4,4-dimethyl-1- phenylpentane-1,3-dione (4) were studied. All re

Efficient formation of lipophilic dihydroxotin(IV) porphyrins and bis-porphyrins

Crossley,Thordarson,Wu

, p. 2294 - 2302 (2007/10/03)

Treatment of dichloro- and dicarboxylato-tin(IV) porphyrins with K2CO3 in THF-H2O (4 : 1) is a mild and highly efficient method for formation of dihydroxotin(IV) porphyrins; unlike other reported procedures, this method is

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