-1,1/2，-1/3,1/4，-1/5,1/6，... (1）写出第7,8,9三个数；_百度知道
-1,1/2，-1/3,1/4，-1/5,1/6，... (1）写出第7,8,9三个数；
（2）第2010个数是什么?如果这一列数无限排列下去，去哪个数越来越近？
提问者采纳
-1/7、1/8、-1/92010个数是：1/2010越来越接近0
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太感谢了，真心有用
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出门在外也不愁找规律（公务员考试模拟题）9，1，4，3，40，备选答案81，80，121，120_百度知道
找规律（公务员考试模拟题）9，1，4，3，40，备选答案81，80，121，120
提问者采纳
3余数为1,1……再从备选答案中选一个余数为1的。填空题答案很多43, 有一题是选择题是121,4,3余数为1。除3余数为0,0,1,1,1,) 1&#47,3余数为1 X&#47,9,,3 余数为0,(,3&#47,4&#47,3 余数为1,3,1,40&#47,1&#47,9 余数为0,40,46,
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1÷3余数为1,n=(4-1)÷1=3,,后都减1÷前都有一个倍数,所以40*3+1=121,前5个数中相临两数后数比前数大(显然答案中的4个数都比40大)的有--1和4,看余数 9÷3余数为0, 3÷3余数为0,3和40,即,只有1和4(1*3+1=4), 排除法, 由两个余数为1的数, 40÷3余数为1,而3和40显然不符合,则有（x-1)÷40=3(x为第六个数) 即为,x=40×3+1=121。 3,把每一个都除以3, 4÷3余数为1,
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出门在外也不愁Aspidospermidine-3-carboxylicacid,4-(acetyloxy)-6,7-didehydro-15-[(2R,4R,6S,8S)-4-(1,1-difluoroethyl)-1,3,4,5,6,7,8,9-octahydro-8-(methoxycarbonyl)-2,6-methano-2H-azecino[4,3-b]indol-8-yl]-3-hydroxy-16-methoxy-1-methyl-,methyl ester, (2b,3b,4b,5a,12R,19a)-
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Updatetime:Oct 11 2012
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Member Levels: Free member
Country: China
Tel: 86 571
Address: Room 802,Block C EAC,NO.18,JiaogongRoad
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Classification:
Cas NO.:-1
Molecular Formula:C45H54F2N4O8
Boiling Point:°Cat760mmHg
Refractive index:1.652
Flash Point:°C
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Packaging Detail:Aluminum bag
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Vinflunine MF: C45H54F2N4O8 MW: 816.93 EINECS: Product Categories: Miscellaneous Natural Products Vinflunine Chemical Properties CAS DataBase Reference -1(CAS DataBase Reference)
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Specifications
1. Introduction of Ulipristal Acetate (CAS NO.-4)
Ulipristal Acetate is a kind of yellow solid. Ulipristal Acetate IUPAC name is [(8S,11R,13S,14S,17R)-17-acetyl-11-(4-dimethylaminophenyl)-13-methyl-3-oxo-1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-17-yl] acetate. It belongs to API;AIntermediates & Fine CIsotope Labelled CPSteroids. CBD 2914 or VA 2914 are other names of it.
Ulipristal acetate is used for research purpose.&India and&South America&are the main market of it. Ulipristal Acetate is a selective
receptor modulator (SPRM) for emergency contraception[2] within 120 hours (5 days) after an unprotected intercourse or contraceptive failure. Ulipristal acetate was granted marketing authorization by the European Medicines Agency (EMA) in March 2009.
2. Basic information of Ulipristal Acetate (CAS NO.-4)
1) Properties of Ulipristal Acetate
(1)Index of Refraction: 1.593; (2)Molar Refractivity: 134.76 cm
(3)Molar Volume: 397.1 cm
(4)Density: 1.19 g/cm
(5)Flash Point: 340.9 &C; (6)Melting point: 183-185 &C; (7)Polarizability: 53.42 10
(8)Surface Tension: 50.3 dyne/ (9)Enthalpy of Vaporization: 94.52 kJ/ (10)Boiling Point: 640.1 &C at 760 mmHg.
2) The following information could be converted into the structure:
(1) Canonical SMILES: CC(=O)C1(CCC2C1(CC(C3=C4CCC(=O)C=C4CCC23)C5=CC=C(C=C5)N(C)C)C)OC(=O)C
(2) Isomeric SMILES: CC(=O)[C@]1(CC[C@@H]2[C@@]1(C[C@@H](C3=C4CCC(=O)C=C4CC[C@@H]23)C5=CC=C(C=C5)N(C)C)C)OC(=O)C
(3) InChI: InChI=1S/C30H37NO4/c1-18(32)30(35-19(2)33)15-14-27-25-12-8-21-16-23(34)11-13-24(21)28(25)26(17-29(27,30)3)20-6-9-22(10-7-20)31(4)5/h6-7,9-10,16,25-27H,8,11-15,17H2,1-5H3/t25,26+,27,29-,30-/m0/s1
(4) InChIKey: OOLLAFOLCSJHRE-ZHAKMVSLSA-N
3) Pharmacokinetics and Pharmacodynamics of Ulipristal Acetate (CAS NO.-4)
In animal studies,&ulipristal Acetate was quickly and nearly completely absorbed from the gut. Intake of food delays absorption, but it is not known whether this is clinically relevant. Ulipristal acetate is metabolized in the liver, most likely by CYP3A4, and to a small extent by CYP1A2 and CYP2D6. The two main metabolites have been shown to be pharmacologically active, but less than the original drug. The main excretion route is via the faeces.
As a SPRM, ulipristal acetate has partial agonistic as well as antagonistic effects on the progesterone receptor. It also binds to the glucocorticoid receptor, but has no relevant affinity to the estrogen, androgen and mineralocorticoid receptors. Phase II clinical trials suggest that the mechanism might consist of blocking or delaying ovulation and of delaying the maturation of the endometrium.
4) Applications of Ulipristal Acetate (CAS NO.-4)
Ulipristal Acetate is a selective labelled progesterone receptor modulator. Ulipristal acetate has partial agonistic as well as antagonistic effects on the progesterone receptor. The ella (ulipristal acetate) tablet for oral use contains 30 mg of a single active steroid ingredient, ulipristal acetate [17αacetoxy-11β-(4-N,N-dimethylaminophenyl)-19-norpregna-4,9-diene-3,20-dione], a synthetic progesterone agonist/antagonist. The inactive ingredients are
monohydrate, povidone K-30, croscarmellose sodium and magnesium stearate.
5)&Package & Storage of&Ulipristal Acetate (CAS NO.-4)
(1) Packing information of&Ulipristal Acetate could be seen in the following photo information.&1Kg of&Ulipristal Acetate is showed as follows.
(2) This chemical can also be packed according to the customer requirements and packaging specifications.
Specifications
acetate MF: C20H24O3 MW: 312.4 EINECS: 233-432-5 Product Categories: HIntermediates & Fine CPSSteroid and HFinished Steroid and Hormone Revalor-H Chemical Properties mp 90-92&C storage temp. 0-6&C CAS DataBase Reference (CAS DataBase Reference) Revalor-H Usage And Synthesis Chemical Properties Pale Yellow Solid Usage A steroid used to increase the muscle growth of livestock.
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Aspidospermidine-3-carboxylicacid,4-(acetyloxy)-6,7-didehydro-15-[(2R,4R,6S,8S)-4-(1,1-difluoroethyl)-1,3,4,5,6,7,8,9-octahydro-8-(methoxycarbonyl)-2,6-methano-2H-azecino[4,3-b]indol-8-yl]-3-hydroxy-16-methoxy-1-methyl-,methyl ester, (2b,3b,4b,5a,12R,19a)- ( HANGZHOU HOLYPHARM BIOTECH CO.,LTD )
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